Class 9 Chemistry Grand MCQs Tests Reduced Syllabus

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?

Which of the following oxides is amphoteric oxide?

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

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

Which of the following elements has greater shielding effect?

Which of the following metals is the least reactive metal?

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

The oxidation number of Boron B. in H₃BO₃ is:

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

The aqueous solutions of ionic compounds conduct electricity due to:

M shell has subshells:

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

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

Which of the following groups contain alkaline earth metals?

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

The covalent bond is formed by:

The period number of Phosphorus is:

Consider the following table:

Which of the following relationship does this table represent?

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]

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

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

How many atoms are there in 0.1 moles of Carbon?

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

Which of the following molecules have a triple covalent bond?

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

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

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

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

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

Which of the following is not the unit of pressure?

Identify the metal used as a catalyst in contact process:

Particles size of colloids vary from:

Identify the element which has the largest atomic radius.

The oxidation state of Hydrogen in metal hydride is?

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

The oxidation number of Cr in Cr₂O₃ and K₂Cr₂O₇ are:

Gain of electrons and loss of oxygen is called:

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

A liquid boils when its vapour pressure becomes equal to:

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

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

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

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

Galvanizing is:

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

Galvanizing is:

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

The number of neutrons in an atom ²³M₁₁ is:

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

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

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

Which of the following substance has an ionic bond?

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

In which of the following processes speed of particles decrease?

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

Identify the covalent compound.

The oxidation state of B in H₃BO₃ is:

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

Which of the following elements belongs to group VIII A?

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

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

Which one of the following substances is not a sublimate?

Which of the following elements has a greater shielding effect?

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:

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

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

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

The direct conversion of a solid into vapours is called:

Which of the following is the Empirical formula of Benzene?

Which of the following ions, Chlorine cannot oxidize?

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

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

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

How many atoms are there in 1.25 moles of Zinc?

The empirical formula for caffeine (C₈H₁₀N₄O₂) is:

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

Water boils at ______ in a pressure cooker.

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

Melting point of Sodium is:

The correct electronic configuration of Mg is:

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

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

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

The number of neutrons in ²⁷M₁₃ is:

Which of the following element is most metallic?

Which of the following solids is amorphous?

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

0.25 moles of SO₂ will contain:

Which of the following ions burns with brick red flame?

A liquid boils when its vapour pressure becomes equal to:

In which group are halogen elements present?

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:

Which metal is used to make filaments of electric bulb?

Which of the following is the opposite of melting?

Which of the following oxides is the most basic oxide?

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

Which of the following atoms obeys the duplet rule?

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

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

Which one is heterogeneous mixture?

Atomic numbers were discovered by:

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

Which of the following solutions is more dilute?

Rutherford used ________ particles in his experiment.

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

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

Which substance does not have an ionic bond?

Which of the following atoms obeys Duplet rule?

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

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

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

Which of the following substance is sublimate?

Which is the property of crystalline solid?

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

Which substance is NOT covalent?

The horizontal rows of the periodic table are called:

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

Chloride ion can not oxidize ______ ion.

Which one of the following substances is not a sublimate?

Which of the following elements has greater shielding effect?

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

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

Which of the following is Sublime?

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

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

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

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

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

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

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

Consider the following table:

Which of the following relationship does this table represent?

Number of neutrons in ²⁷M₁₃  is ________.

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

Relationship “PV=Constant” represents:

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

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

Which of the following is the most basic oxide?

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

What is the mass of 4 moles of Hydrogen gas?

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

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

Al₂O₃ is an example of ________ oxide.

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

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

Which of the following is Milk of Magnesia?

The Oxidation number of ‘N’ in HNO₃ is:

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

Period number of Phosphorus in Periodic table is:

A liquid boils when its vapour pressure becomes equal to:

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

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

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

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

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

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

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?

Galvanizing is coating with _________.

Galvanizing is:

Value of Plank’s constant is:

Which one of the following obeys Duplet rule?

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

A liquid boils when its vapour pressure becomes equal to:

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

A liquid boils when its vapour pressure is __________.

‘V ∝  T’ Relationship represents:

Oxidation number of Mn is KMnO₄ is:

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

Oxidation state of Cr in K₂Cr₂O₇ is:

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

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

Which of the following does not involve electrolytic process?

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

Rutherford used _____________ particles in his experiment.

Which of the following element is most metallic?

M shell has _____ subshells.

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

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

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

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

Mention the amphoteric oxide out of given oxides.

SO₂ is ___________ oxide.

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

Which of the following molecules obey the duplet rule?

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

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

Which of the following is an amphoteric oxide?

The tendency of a metal to lose electrons is called:

The melting point of Sodium Chloride is:

Which of the following is a covalent compound?

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