Class 9 Chemistry Grand MCQs Tests Past Papers

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Class 9 Chemistry Grand MCQs Tests


Chemistry 9 Grand MCQs Test 1

326

Class 9 Chemistry
Past Papers MCQs Grand Test 1

1 / 192

Which of the following solution is more dilute?

2 / 192

A liquid boils when the vapour pressure becomes equal to:

3 / 192

The empirical formula for caffeine (C8H10N4O2) is:

4 / 192

Solubility of sodium chloride in 100g of water at room temperature is:

5 / 192

The electronic configuration “1S2 2S2 2P6 3S2” belongs to:

6 / 192

In the formation of AlF3, how many electron(s) are lost by an Aluminum atom?

7 / 192

Keeping the pressure of gas constant, average kinetic energy increase by:

8 / 192

In which of the following processes the speed of the particles decreases?

9 / 192

A liquid boils when its vapour pressure becomes equal to:

10 / 192

Mass of Copper Sulphate dissolved in 100g of solution is called:

11 / 192

Which one of the following elements belongs to Group III-A of the periodic table?

12 / 192

How many molecules are present in 0.5 moles of Benzene (C6H6)?

13 / 192

Which one of the following compounds is not having an ionic bond?

14 / 192

How many atoms are there in 0.1 moles of Carbon?

15 / 192

Number of periods in the periodic table are:

16 / 192

The covalent bond is formed by:

17 / 192

Which of the following isotopes is used to trace the flow of blood and detect possible constrictions or obstructions in the circulatory system?

18 / 192

In Halogens, the order of decreasing oxidizing power is:

19 / 192

The Oxidation number of ‘N’ in HNO3 is:

20 / 192

If one mole of ‘Na’ contains ‘x’ atoms of Sodium, what is the number of atoms contained in 46g of Sodium?

21 / 192

The correct electronic configuration of Mg is:

22 / 192

Which of the following is the opposite of melting?

23 / 192

The period number of Phosphorus is:

24 / 192

How many moles of Na atoms are present in 2.3g of Sodium?

25 / 192

A solution of NaOH has a concentration of 4g/ dm3. What is the mass of NaOH contained in 250 cm3 of this solution?

26 / 192

Which term is same for one mole of hydrogen and one mole of water?

27 / 192

Which of the following ions burns with brick red flame?

28 / 192

The elements that can exist in two or more different arrangements of atoms are called:

29 / 192

The oxidation state of Fe in Fe2O3 is:

30 / 192

Which compound acts as a fixer in photography?

31 / 192

Which metal is used to make filaments of electric bulb?

32 / 192

The oxidation state of in N in NH3 is:

33 / 192

A compound with chemical formula Na2CX3 has formula mass of 106 amu. Atomic mass of the element “X” is:

34 / 192

Which one is heterogeneous mixture?

35 / 192

In which group are halogen elements present?

36 / 192

Melting point of Sodium is:

37 / 192

Which of the following substance has an ionic bond?

38 / 192

A compound with chemical formula BaSX4 has a formula mass of 233 amu. The atomic mass of the element X is:

39 / 192

When Uranium-238 decays into Thorium-234, it emits:

40 / 192

How many atoms are there in 1.25 moles of Zinc?

41 / 192

A mole is an amount of substance that contains _____ particles of that substance.

42 / 192

At constant temperature, on increasing the pressure on a gas, the distance between molecules:

43 / 192

How many moles of molecules are there in 16 g of Oxygen gas?

44 / 192

Which of the following molecules obey the duplet rule?

45 / 192

The oxidation state of “Cr” in K2Cr2O7 is:

46 / 192

In which of the following changes the nitrogen atom is reduced?

47 / 192

The oxidation state of “S” in S2Cl2 is:

48 / 192

H2S + Cl2   →   2HCl + S
In above reaction H2S behaves as:

49 / 192

Which of the following groups contain alkaline earth metals?

50 / 192

In which of the following processes speed of particles decrease?

51 / 192

A 100 gram solution contains 25 grams of a solute. This solution will be called:

52 / 192

The tendency of a metal to lose electrons is called:

53 / 192

A student mixed a solute in a solvent and made a mixture. After 15 minutes, he/she observed that solute has settled down. He/she will call this mixture as:

54 / 192

Which of the following property of halogens is maximum among the members of their period?

55 / 192

The escape of molecules of a gas through a small hole one after the other is called:

56 / 192

Which of the following atoms obeys the duplet rule?

57 / 192

Which of the following is a component of air responsible for greenhouse effect?

58 / 192

M shell has subshells:

59 / 192

Consider the following reaction:
CuO + H2  →  Cu + H2O
In this reaction CuO behaves as:

60 / 192

Which of the following oxides is amphoteric oxide?

61 / 192

0.25 moles of SO2 will contain:

62 / 192

Which of the following elements will gain one electron to complete its octet?

63 / 192

Atmospheric pressure at Murree is less than 1 atm so, the boiling point of water at Murree will be:

64 / 192

Mass of 2 moles of hydrogen gas is:

65 / 192

Which of the following is a group VIII-A element?

66 / 192

What is the formula mass of CaCl2?

67 / 192

Identify the isotope of Uranium used in nuclear reactors:

68 / 192

What is the reducing agent in the following reaction?
CuO + H2 →  Cu + H2O

69 / 192

How many atoms are there in 28 g of N2 gas?

70 / 192

In which of the following changes the nitrogen atom is reduced?

71 / 192

Which of the following elements in the given reaction is reduced?
ZnO + H2  →  Zn + H2O

72 / 192

Chloride ion can not oxidize ______ ion.

73 / 192

Mention the amphoteric oxide out of given oxides.

74 / 192

Which of the following is the Empirical formula of Benzene?

75 / 192

The melting point and boiling point of water are higher due to:

76 / 192

Electronic configuration of an element is 1s2 2s2 2p6 3s2 3p3. In which of the following groups it will be placed?

77 / 192

The quantity of solute in a given amount of solvent is called:

78 / 192

Which of the following elements has a greater shielding effect?

79 / 192

The elements of groups IIIA-VIIIA are called:

80 / 192

Which of the following is a defect of Rutherford atomic model?

81 / 192

Identify the element which has the largest atomic radius.

82 / 192

Predict which halogen can displace chlorine from aqueous solution of potassium chloride:

83 / 192

The oxidation state of Hydrogen in metal hydride is?

84 / 192

Some Carbon compounds such as CO, CO2, Carbonates and Hydrogen Carbonates are studied in a branch of Chemistry called:

85 / 192

Gemstones are solutions of:

86 / 192

Identify the isotope used as a Tracer in diagnosing Thyroid problem:

87 / 192

Charle’s law can be stated / represented as:

88 / 192

Which of the following is NOT a compound?

89 / 192

If you move from left to right in a period of periodic table, which of the following will NOT change?

90 / 192

Which of the following elements belongs to group VIII A?

91 / 192

Consider the following reaction:
H2S+Cl2→2HCl+S
Which of the following statement is true about above reaction?

92 / 192

A liquid boils when its vapour pressure becomes equal to:

93 / 192

Which isotope is used to irradiate cancer cells?

94 / 192

Conversion of a liquid into a gas at all temperature is called:

95 / 192

Which of the following elements belongs to VIII-A group?

96 / 192

In which of the following processes speed of particles decrease:

97 / 192

The oxidation number of Cr in Cr2O3 and K2Cr2O7 are:

98 / 192

Na has _______ electronic configuration.

99 / 192

Which of the following oxides is the most basic oxide?

100 / 192

Rutherford used ________ particles in his experiment.

101 / 192

Fermentation of cane sugar produces ______ v/v of ethyl alcohol called rectified spirit.

102 / 192

An aqueous solution can dissolve 25 g of a solid at 25°C. If someone dissolves 20g of this solid in water at 25°C then this solution will be called:

103 / 192

Which is NOT a property of crystalline solids?

104 / 192

Gain of electrons and loss of oxygen is called:

105 / 192

Identify the covalent compound.

106 / 192

The oxidation state of B in H3BO3 is:

107 / 192

Which of the following elements has greater shielding effect?

108 / 192

235U92 is used in atomic bombs, the number of neutrons present in this isotope of Uranium is:

109 / 192

In NaCl cubic crystal each Cl-1 ion is surrounded by ______ Na+ ions.

110 / 192

\(_{10}^{20}\textrm{Ne}\) has electronic configuration:

111 / 192

What is the mass of FOUR moles of Hydrogen (H2) gas?

112 / 192

Considering the electronic configuration of atoms, which atom with the given electronic configuration will be the most stable one and least reactive?

113 / 192

Identify the metal used as a catalyst in contact process:

114 / 192

According to Rutherford’s model the circular path in which electron revolves around nucleus is called:

115 / 192

Which of the following is the reaction taking place at anode?

116 / 192

A solution of KOH has concentration 56 g/dm3. What is the mass of KOH contained in 500cm3 of this solution?

117 / 192

Identify the ionic compound from the given options:

118 / 192

How many grams of O2 are present in a container having 3×1023 molecules? (Atomic mass O=16)

119 / 192

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Number of periods in the periodic table are:

120 / 192

The oxidation number of Boron B. in H3BO3 is:

121 / 192

A liquid boils when its vapour pressure becomes equal to:

122 / 192

Particles size of colloids vary from:

123 / 192

Consider the following table:

S NoXYX / Y
1.1.002730.0037
2.1.373730.0037
3.1.734730.0037

Which of the following relationship does this table represent?

124 / 192

The aqueous solutions of ionic compounds conduct electricity due to:

125 / 192

Acetone melts at – 94°C and boils at 56°C. What is the physical state of Acetone at 25°C and 1 atm?

126 / 192

A chemist dissolves 15g of NaCl in 85g of H2O. This solution is:

127 / 192

The branch of chemistry that deals with laws and theories to understand the structure and changes of matter is called:

128 / 192

How many moles of Na atoms are present in 2.3 g of Na?

129 / 192

Which of the following oxides is utilized in breathing equipment to provide oxygen to patients?

130 / 192

If the temperature of 30 dm3 gas is increased from 273K to 546K the volume of it will become:

131 / 192

Bromine has a melting point of – 7°C and a boiling point of 59°C. What is the physical state of Bromine at 100°C?

132 / 192

Which is the property of crystalline solid?

133 / 192

Which of the following substance in the given reaction is being reduced?
ZnO + H2→Zn+H2O

134 / 192

Which of the following is the most basic oxide?

135 / 192

Which of the following is not an electrolyte?

136 / 192

Which one of the following sub shell is filled after filling of 3p sub shell?

137 / 192

Alloy are an example of:

138 / 192

Which of the following quantities are the same for one mole of hydrogen gas and one mole of water?

139 / 192

Identify the number of electrons that the f-subshell can accommodate.

140 / 192

From the given atomic number identify atom which will form cation.

141 / 192

Which of the following is the correct empirical formula of C6H4O(NO2)3?

142 / 192

Which quantity is same for one mole of Hydrogen gas and one mole of water?

143 / 192

Water boils at ______ in a pressure cooker.

144 / 192

Which element is reduced in the given redox reaction?
ZnO + H2  →  Zn + H2O

145 / 192

What is used to manufacture urea?

146 / 192

Which of the following molecules has triple covalent bond between its atoms?

147 / 192

Which term is same for one mole of oxygen gas and one mole of water?

148 / 192

Which of the following cells is used in manufacturing sodium metal?

149 / 192

Which of the following metals is the least reactive metal?

150 / 192

A liquid boils when its vapour pressure becomes equal to:

151 / 192

All the halogens react with metals to form salts called:

152 / 192

Which of the following oxides is the most basic oxide?

153 / 192

Arrangement of electrons in subshells is done by using:

154 / 192

Identify covalent compounds:

155 / 192

What is the mass of Carbon present in 44 g of Carbon dioxide?

156 / 192

Which of the following does not involve electrolytic process?

157 / 192

Which of the following molecules have a triple covalent bond?

158 / 192

An electrochemical cell in which electrical energy is used to derive a chemical reaction is called:

159 / 192

Which products are formed by the electrolysis of molten NaCl?

160 / 192

Group number of aluminum is:

161 / 192

The volume of a 0.5 M solution of hydrochloric acid containing its 2 moles is:

162 / 192

Which of the following ions, Chlorine cannot oxidize?

163 / 192

Identify the pair of molecules having double covalent bonds:

164 / 192

Galvanizing is:

165 / 192

Which of the following substances in the given reaction is being reduced:
ZnO+H2→Zn+H2O

166 / 192

A sub-shell that can accommodate 10 electrons is:

167 / 192

Galvanizing is:

168 / 192

Identify the branch of chemistry which deals with study of glucose formation by plants:

169 / 192

Which of the following is the strongest acid?

170 / 192

The bond formed between atoms due to transfer of electrons from one atom to another is called:

171 / 192

The equation V/T = Constant is the mathematical expression of:

172 / 192

A compound with chemical formula Na2CX3 has formula mass 106 amu. What is the atomic mass of the element X? [Atomic Masses: C=12, Na=23]

173 / 192

Boyle's law explains the behaviour of gases using two variables:

174 / 192

The atomic radius of an atom _________ as one move from top to bottom in a group of periodic table.

175 / 192

The direct conversion of a solid into vapours is called:

176 / 192

The number of neutrons in an atom 23M11 is:

177 / 192

Which one of the following molecules has a non-polar covalent bond?

178 / 192

Keeping in view Auf Bau Principle, identify the energy level which the elements fill first.

179 / 192

The bond which is formed by complete transfer of electrons from one atom to another is called:

180 / 192

‘M’ shell of an atom has the following sub-shells:

181 / 192

The number of neutrons in 27M13 is:

182 / 192

Total number of shared electrons in a molecule of CO2 are:

183 / 192

Which of the following is not the unit of pressure?

184 / 192

Predict what will happen to the volume of a gas, if its pressure is raised three times, keeping the temperature constant?

185 / 192

Predict the location of \(_{13}^{27}\textrm{Al}\) in Periodic table:

186 / 192

The electronic configuration of an element is 1s2, 2s2. An atom of this element will form an ion that will have a charge:

187 / 192

Which of the following solids is amorphous?

188 / 192

Which of the element of the 3rd period has highest electronegativity?

189 / 192

Galvanizing is:

190 / 192

If molar mass of a compound is 90 g/mole, the number of its moles containing 3.011×1023 molecules will be:

191 / 192

Which of the following halogens has lowest electronegativity?

192 / 192

A solution contains 0.05 moles of KMnO4 in 600 cm3 of solution. The morality of this solution is:

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Chemistry 9 Grand MCQs Test 2

239

Class 9 Chemistry
Past Papers MCQs Grand Test 2

1 / 72

What is the mass of Carbon present in 44 g of CO2?

2 / 72

Which one is the correct electronic configuration according to Auf Bau Principle?

3 / 72

Atomic numbers were discovered by:

4 / 72

Oxidation number of Mn is KMnO4 is:

5 / 72

Which substance does not have an ionic bond?

6 / 72

What is the formula mass of CuSO4.5H2O?
(Cu=63.5, H=1, O=16, S=32)

7 / 72

A solution of NaOH has a concentration of 4g/ dm3. What is the mass of NaOH contained in 250 cm3 of this solution?

8 / 72

The natural abundance of chlorine-35 is:

9 / 72

In Aqua Regia, the ratio between HCl (Conc.) and HNO3 (Conc.) is:

10 / 72

Which of the following element is most metallic?

11 / 72

The number of moles in 46 g of Sodium (Na) will be?

12 / 72

In chrome plating, the compound used as an electrolyte is:

13 / 72

Oxidation state/number of ‘Cr’ in K2Cr2O7 is:

14 / 72

What is the mass of 4 moles of Hydrogen gas?

15 / 72

Which of the following is NOT TRUE about the formation of Na2S?

16 / 72

The increase in ionization energy from left to right in a period is due to:

17 / 72

NaCl forms a colorless cubic crystal. Which of the following has also the same cubic crystal as NaCl crystal?

18 / 72

Which isotope is used in nuclear reactors?

19 / 72

The branch of chemistry that deals with substances containing carbon is called:

20 / 72

In the formation of AlF3, Al atom loses _________ electrons.

21 / 72

M shell has _____ subshells.

22 / 72

Which of the following elements in the given reaction is reduced?
ZnO + H2  →   Zn + H2O

23 / 72

Which of the following is Milk of Magnesia?

24 / 72

Which one of the following substances is not a sublimate?

25 / 72

Which substance is NOT covalent?

26 / 72

Which of the following isotopes is used to trace the flow of blood and detect possible constrictions or obstructions in the circulatory system?

27 / 72

Galvanizing is coating with _________.

28 / 72

Which of the following elements has greater shielding effect?

29 / 72

A liquid boils when its vapour pressure is __________.

30 / 72

The electron affinity increases from left to right along a period due to:

31 / 72

How many elements were known by the end of the 18th century?

32 / 72

The melting point of Sodium Chloride is:

33 / 72

Which of the following is used as cathode in the Down’s cell?

34 / 72

Consider the following table:

S NoXYX / Y
1.1.002730.0037
2.1.373730.0037
3.1.734730.0037
4.2.105730.0037

Which of the following relationship does this table represent?

35 / 72

Which of the following sub-shells can accommodate 6 electrons?

36 / 72

Which of the following is a molecular ion?

37 / 72

Period number of Phosphorus in Periodic table is:

38 / 72

At Mount Everest, what is the boiling point of water?

39 / 72

Rutherford used _____________ particles in his experiment.

40 / 72

Which of the following solutions is more dilute?

41 / 72

A compound with chemical formula Na2CX3 has formula mass 106 amu. Atomic mass of the element X is _______.

42 / 72

Which of the following atoms obeys Duplet rule?

43 / 72

‘V ∝  T’ Relationship represents:

44 / 72

In which group of the Periodic table is S present on the basis of electronic configuration?

45 / 72

Valence shell electronic configuration of an element M (Atomic No 14) is:

46 / 72

Which one of the following obeys Duplet rule?

47 / 72

What is maximum amount of Sodium Acetate that can be dissolved in 100 g of water at 0°C?

48 / 72

The correct electronic configuration of an atom having atomic number ‘13’ is:

49 / 72

What is the oxidation state of Hydrogen in case of Metallic Hydrides?

50 / 72

Which of the following is Sublime?

51 / 72

Vegetable oil is converted into vegetable ghee by passing H2 gas through the oil. In this process which of the following elements is used as a catalyst?

52 / 72

SO2 is ___________ oxide.

53 / 72

Due to high ionization energies, which element do NOT lose electron?

54 / 72

Al2O3 is an example of ________ oxide.

55 / 72

Number of neutrons in 27M13  is ________.

56 / 72

Which of the following is a covalent compound?

57 / 72

How many moles of molecules are there in 16 g Oxygen?

58 / 72

Carbon has __________ isotopes.

59 / 72

In chromium plating the H2SO4 is added to Cr2(SO4)3 in order to:

60 / 72

Consider the given reaction:
H2S + Cl2   →  2 HCl + S
In the above reaction, H2S behaves as a/an ________.

61 / 72

Which of the following is an amphoteric oxide?

62 / 72

The electronic configuration of an element is 1s2, 2s2. An atom of this element will form an ion that will have ______ charge.

63 / 72

Value of Plank’s constant is:

64 / 72

The number of moles in 54 g of water will be:

65 / 72

Oxidation state of Cr in K2Cr2O7 is:

66 / 72

If one mole of carbon contains x atoms, then what is the number of atoms contained in 12 g of Mg?

67 / 72

Relationship “PV=Constant” represents:

68 / 72

The horizontal rows of the periodic table are called:

69 / 72

When Arshad dissolves 28 g of KOH in one dm3 of water. Its molarity will be:

70 / 72

A solution of NaOH contains 30 g of this compound in 1.5 dm3 of solution. What is the Molarity of this solution?

71 / 72

Silicon belongs to group IV A. It has _______ electrons in the valence shell.

72 / 72

Which of the following substance is sublimate?

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  1. This is an amazing way to know your performance you have performed in whole year. Literally it is very beneficial for students . Keep going

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