Class 9 Chemistry Grand MCQs Tests Reduced Syllabus

Particles size of colloids vary from:

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

The oxidation number of Cr in Cr₂O₃ and K₂Cr₂O₇ are:

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

Identify the covalent compound.

Which of the following is not the unit of pressure?

Galvanizing is:

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

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

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

The oxidation state of B in H₃BO₃ is:

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:

Gain of electrons and loss of oxygen is called:

Which of the following elements has a greater shielding effect?

How many atoms are there in 0.1 moles of Carbon?

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

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

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

Identify the metal used as a catalyst in contact process:

Which of the following elements belongs to group VIII A?

Which of the following elements has greater shielding effect?

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

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

In which group are halogen elements present?

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

Galvanizing is:

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

Which of the following is the Empirical formula of Benzene?

Which of the following element is most metallic?

Which of the following substance has an ionic bond?

The direct conversion of a solid into vapours is called:

The number of neutrons in ²⁷M₁₃ is:

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

In which of the following processes speed of particles decrease?

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

Which one is heterogeneous mixture?

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

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

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

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

The correct electronic configuration of Mg is:

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

Which of the following oxides is the most basic oxide?

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

A liquid boils when its vapour pressure becomes equal to:

The empirical formula for caffeine (C₈H₁₀N₄O₂) is:

Which of the following is the opposite of melting?

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

Identify the element which has the largest atomic radius.

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]

Which of the following oxides is amphoteric oxide?

Which of the following atoms obeys the duplet rule?

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

A liquid boils when its vapour pressure becomes equal to:

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

Which metal is used to make filaments of electric bulb?

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

Water boils at ______ in a pressure cooker.

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

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

Which of the following ions burns with brick red flame?

The number of neutrons in an atom ²³M₁₁ is:

The period number of Phosphorus is:

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

Which of the following groups contain alkaline earth metals?

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

The oxidation state of Hydrogen in metal hydride is?

Which of the following ions, Chlorine cannot oxidize?

The covalent bond is formed by:

Which of the following solids is amorphous?

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

Which one of the following substances is not a sublimate?

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

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

Melting point of Sodium is:

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

0.25 moles of SO₂ will contain:

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?

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

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

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

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

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

The oxidation number of Boron B. in H₃BO₃ is:

How many atoms are there in 1.25 moles of Zinc?

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

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

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

Which of the following molecules have a triple covalent bond?

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

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

Which of the following metals is the least reactive metal?

M shell has subshells:

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

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

The aqueous solutions of ionic compounds conduct electricity due to:

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

Consider the following table:

Which of the following relationship does this table represent?

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:

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

A liquid boils when its vapour pressure is __________.

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

Which of the following solutions is more dilute?

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

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

Which of the following does not involve electrolytic process?

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

Which of the following elements has greater shielding effect?

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

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

Al₂O₃ is an example of ________ oxide.

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

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

Rutherford used ________ particles in his experiment.

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

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

The horizontal rows of the periodic table are called:

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

What is the mass of 4 moles of Hydrogen gas?

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

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

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

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

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

Value of Plank’s constant is:

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

The melting point of Sodium Chloride is:

Which is the property of crystalline solid?

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

M shell has _____ subshells.

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

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

A liquid boils when its vapour pressure becomes equal to:

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

Which substance does not have an ionic bond?

The tendency of a metal to lose electrons is called:

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

Which substance is NOT covalent?

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

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

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

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

Which of the following atoms obeys Duplet rule?

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

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

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

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

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 NOT TRUE about the formation of Na₂S?

Oxidation state of Cr in K₂Cr₂O₇ is:

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

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

Period number of Phosphorus in Periodic table is:

A liquid boils when its vapour pressure becomes equal to:

‘V ∝  T’ Relationship represents:

Galvanizing is:

Which of the following is the most basic oxide?

Which one of the following substances is not a sublimate?

Relationship “PV=Constant” represents:

Which one of the following obeys Duplet rule?

Number of neutrons in ²⁷M₁₃  is ________.

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

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

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