Class 11 Chemistry Chapter 1 MCQ for NEET

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Class 11 Chemistry Chapter 1 MCQ. We covered all the Class 11 Chemistry Chapter 1 MCQ in this post for free so that you can practice well for the exam.

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MCQ on Chemistry Concepts for NEET Students

What volume of hydrogen gas at 273 K and I atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?

Carbon reacts with oxygen to form two compounds: carbon monoxide and carbon dioxide. The ratio of masses of oxygen that combine with the same mass of carbon in carbon monoxide and carbon dioxide is ………

84 g of a gas occupies the same volume as 96 g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is ………

The volume of CO₂ obtained on the complete decomposition of 19.73 g of BaCO3 at STP is (Atomic mass: Ba = 137.3, C = 12,0=16)

The molecular mass and empirical formula of a compound are 180 g and CH₂O respectively. What will be the molecular formula of the compound?

The number of grams of oxygen in 0.10 mole of Na₂CO3.10H₂O is ………..

The maximum volume of 0.25 M HCl which can be made by using one liter of 0.15 M HCl and one liter of 0.40 M HCl without adding water is ……….. Assume that volumes are additive.

What is the mass of carbon dioxide which contains the same number of molecules as are present in 40 g of oxygen?

Amount of NO(g) formed in grams by oxidation of 1 mole of NH3(g) by 1 mole of O2(g) is ………….

A mixture of gases contains H₂ and O. gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the H₂ and O₂ gases in the mixture?

A mixture of Nal and NaCl on reaction with H₂SO4 gave Na₂SO4 equal to the weight of the original mixture taken. The mass percentage of Nal in the original mixture is ……… (Atomic weight of Na= 23, 1= 127, S = 32, Cl = 35.5, O=16)

Two samples of a compound of hydrogen and oxygen obtained by two different processes were analyzed. One sample contained 0.2 g of hydrogen and 3.2 g of oxygen. The other sample contained 5.88 % hydrogen and 94.12% oxygen. The experimental data obtained ……..

A gaseous hydrocarbon upon combustion gives 0.72 g of water and 3.08 g of CO₂. The empirical formula of the hydrocarbon is ………..

81.4 g sample of ethyl alcohol contains 0.002 g. The amount of pure ethyl alcohol in water. sample up to the proper number of present in the significant figures is ………..

Total number of electrons in 1 mole of CO₂ (in terms of N₁) is ………

Equal masses of H₂, O₂, and CH have been taken in a container of volume (V) at a temperature of 27 °C in identical conditions. The ratio of the volumes of gases H₂ : O₂ : CH4 would be ………..

The amount of HCl in gastric juice is about 3.0 g per liter. If a person produces 2.5 liters of gastric juice per day then the number of antacid tablets each containing 300 mg of Al(OH)3 needed to neutralize the HC1l produced in one day is approximately ………(Atomic mass of Al = 27, CI = 35.5, O = 16, H= 1)

A sample of hydrated barium chloride weighing 61 g was heated until all the water of hydration is removed. The weight of the dried sample was found to be 52 g. What is the formula of the hydrated salt? (Atomic mass of Ba = 137, Cl = 35.5)

Which of the following statements about a compound is INCORRECT?

If the temperature (X°) of a substance is the same when expressed in °F and °C, then the value of Xº will be ………

An organic compound made up of C, H and N contain 20% nitrogen. What will be its molar mass in grams if it contains only one nitrogen atom per molecule of the compound?

The amount of sodium sulphate formed when 1 L of 0.1 M sulphuric acid is allowed to react with 1 L of 0.1 M sodium hydroxide is …………..

The volume occupied by 2 g of the gas at STP having vapor density 11.2 is ……….. ( Class 11 Chemistry Chapter 1 MCQ )

Excess carbon dioxide is passed through 50 mL of 0.5 M calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralized with 0.1 M hydrochloric acid. What will be the volume of hydrochloric acid required for the complete neutralization of CaCO3? (Atomic mass of Ca = 40)

MCQ on Chemistry Concepts for NEET Students

What volume of hydrogen gas at 273 K and I atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?

(A) 67.2 L

(B) 44.8 L

(D) 89.6 L

Option a – 67.2 L

Carbon reacts with oxygen to form two compounds: carbon monoxide and carbon dioxide. The ratio of masses of oxygen that combine with the same mass of carbon in carbon monoxide and carbon dioxide is ………

(A) 1 : 2

(B) 2 : 1

(D) 3 : 4

Option a – 1 : 2

84 g of a gas occupies the same volume as 96 g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is ………

(A) 36.5 g

(B) 28 g

(D) 18.2 g

Option b – 28 g

The volume of CO₂ obtained on the complete decomposition of 19.73 g of BaCO3 at STP is (Atomic mass: Ba = 137.3, C = 12,0=16)

(A) 2.24 L

(B) 1.12 L

(D) 0.56 L

Option a – 2.24 L

The molecular mass and empirical formula of a compound are 180 g and CH₂O respectively. What will be the molecular formula of the compound?

(A) C9H1809

(B) CH₂O

(D) C₂H4O₂

Option c – C6H12O6

The number of grams of oxygen in 0.10 mole of Na₂CO3.10H₂O is ………..

(A) 13 g

(B) 20.8 g

(D) 208 g

Option b – 20.8 g

The maximum volume of 0.25 M HCl which can be made by using one liter of 0.15 M HCl and one liter of 0.40 M HCl without adding water is ……….. Assume that volumes are additive.

(A) 2 L

(B) 2.2 L

(D) 0.55 L

Option c – 1.667 L

What is the mass of carbon dioxide which contains the same number of molecules as are present in 40 g of oxygen?

(A) 40 g

(B) 55 g

(D) 44 g

Option b – 55 g

Amount of NO(g) formed in grams by oxidation of 1 mole of NH3(g) by 1 mole of O2(g) is ………….

(A) 30.0 g

(B) 54.0 g

(D) 24.0 g

Option d – 24.0 g

A mixture of gases contains H₂ and O. gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the H₂ and O₂ gases in the mixture?

(A) 16 : 1

(B) 2 : 1

(D) 4 : 1

Option d – 4 : 1

A mixture of Nal and NaCl on reaction with H₂SO4 gave Na₂SO4 equal to the weight of the original mixture taken. The mass percentage of Nal in the original mixture is ……… (Atomic weight of Na= 23, 1= 127, S = 32, Cl = 35.5, O=16)

(A) 15.38

(B) 28.38

(D) 82.38

Option b – 28.38

Two samples of a compound of hydrogen and oxygen obtained by two different processes were analyzed. One sample contained 0.2 g of hydrogen and 3.2 g of oxygen. The other sample contained 5.88 % hydrogen and 94.12% oxygen. The experimental data obtained ……..

(A) supports the law of conservation of mass

(B) supports the law of definite proportions

(D) shows that the composition of elements present is different for both the samples

Option b – supports the law of definite proportions

A gaseous hydrocarbon upon combustion gives 0.72 g of water and 3.08 g of CO₂. The empirical formula of the hydrocarbon is ………..

(A) C₂H4

(B) C₂H4

(D) C7H8

Option d – C7H8

81.4 g sample of ethyl alcohol contains 0.002 g. The amount of pure ethyl alcohol in water. sample up to the proper number of present in the significant figures is ………..

(A) 81.4 g

(B) 71.40 g

(D) 81 g

Option a – 81.4 g

Total number of electrons in 1 mole of CO₂ (in terms of N₁) is ………

(A) 3NA

(B) NA

(D) 22NA

Option d – 22NA

Equal masses of H₂, O₂, and CH have been taken in a container of volume (V) at a temperature of 27 °C in identical conditions. The ratio of the volumes of gases H₂ : O₂ : CH4 would be ………..

(A) 8 : 16 : 1

(B) 16 : 8 : 1

(D) 8 : 1 : 2

Option c – 16 : 1 : 2

The amount of HCl in gastric juice is about 3.0 g per liter. If a person produces 2.5 liters of gastric juice per day then the number of antacid tablets each containing 300 mg of Al(OH)3 needed to neutralize the HC1l produced in one day is approximately ………(Atomic mass of Al = 27, CI = 35.5, O = 16, H= 1)

(A) 12

(B) 15

(D) 25

Option c – 18

A sample of hydrated barium chloride weighing 61 g was heated until all the water of hydration is removed. The weight of the dried sample was found to be 52 g. What is the formula of the hydrated salt? (Atomic mass of Ba = 137, Cl = 35.5)

(A) BaCl₂.H₂O

(B) BaCl₂.2H₂O

(D) BaCl₂.4H₂O

Option b – BaCl₂.2H₂O

Which of the following statements about a compound is INCORRECT?

(A) A molecule of a compound has atoms of different elements.

(B) A compound cannot be separated into its constituent elements by physical methods of separation.

(D) The ratio of atoms of different elements in a compound is fixed.

Option c – A compound retains the physical properties of its constituent elements.

If the temperature (X°) of a substance is the same when expressed in °F and °C, then the value of Xº will be ………

(A) 180°

(B) – 273°

(D) – 32°

Option c – – 40°

An organic compound made up of C, H and N contain 20% nitrogen. What will be its molar mass in grams if it contains only one nitrogen atom per molecule of the compound?

(A) 70

(B) 140

(D) 65

Option a – 70

The amount of sodium sulphate formed when 1 L of 0.1 M sulphuric acid is allowed to react with 1 L of 0.1 M sodium hydroxide is …………..

(A) 7.10 g

(B) 3.55 g

(D) 142 g

Option a – 7.10 g

The volume occupied by 2 g of the gas at STP having vapor density 11.2 is ……….. ( Class 11 Chemistry Chapter 1 MCQ )

(A) 2 L

(B) 4 L

(D) 22.4 L

Option a – 2 L

Excess carbon dioxide is passed through 50 mL of 0.5 M calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralized with 0.1 M hydrochloric acid. What will be the volume of hydrochloric acid required for the complete neutralization of CaCO3? (Atomic mass of Ca = 40)

(A) 200 mL

(B) 300 mL

(D) 500 mL

Option d – 500 mL

We covered all the class 11 chemistry chapter 1 MCQ above in this post for free so that you can practice well for the exam.

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MCQ on Chemistry Concepts for NEET Students

What volume of hydrogen gas at 273 K and I atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?

Carbon reacts with oxygen to form two compounds: carbon monoxide and carbon dioxide. The ratio of masses of oxygen that combine with the same mass of carbon in carbon monoxide and carbon dioxide is ………

84 g of a gas occupies the same volume as 96 g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is ………

The volume of CO₂ obtained on the complete decomposition of 19.73 g of BaCO3 at STP is (Atomic mass: Ba = 137.3, C = 12,0=16)

The molecular mass and empirical formula of a compound are 180 g and CH₂O respectively. What will be the molecular formula of the compound?

The number of grams of oxygen in 0.10 mole of Na₂CO3.10H₂O is ………..

The maximum volume of 0.25 M HCl which can be made by using one liter of 0.15 M HCl and one liter of 0.40 M HCl without adding water is ……….. Assume that volumes are additive.

What is the mass of carbon dioxide which contains the same number of molecules as are present in 40 g of oxygen?

Amount of NO(g) formed in grams by oxidation of 1 mole of NH3(g) by 1 mole of O2(g) is ………….

A mixture of gases contains H₂ and O. gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the H₂ and O₂ gases in the mixture?

A mixture of Nal and NaCl on reaction with H₂SO4 gave Na₂SO4 equal to the weight of the original mixture taken. The mass percentage of Nal in the original mixture is ……… (Atomic weight of Na= 23, 1= 127, S = 32, Cl = 35.5, O=16)

Two samples of a compound of hydrogen and oxygen obtained by two different processes were analyzed. One sample contained 0.2 g of hydrogen and 3.2 g of oxygen. The other sample contained 5.88 % hydrogen and 94.12% oxygen. The experimental data obtained ……..

A gaseous hydrocarbon upon combustion gives 0.72 g of water and 3.08 g of CO₂. The empirical formula of the hydrocarbon is ………..

81.4 g sample of ethyl alcohol contains 0.002 g. The amount of pure ethyl alcohol in water. sample up to the proper number of present in the significant figures is ………..

Total number of electrons in 1 mole of CO₂ (in terms of N₁) is ………

Equal masses of H₂, O₂, and CH have been taken in a container of volume (V) at a temperature of 27 °C in identical conditions. The ratio of the volumes of gases H₂ : O₂ : CH4 would be ………..

A sample of hydrated barium chloride weighing 61 g was heated until all the water of hydration is removed. The weight of the dried sample was found to be 52 g. What is the formula of the hydrated salt? (Atomic mass of Ba = 137, Cl = 35.5)

Which of the following statements about a compound is INCORRECT?

If the temperature (X°) of a substance is the same when expressed in °F and °C, then the value of Xº will be ………

An organic compound made up of C, H and N contain 20% nitrogen. What will be its molar mass in grams if it contains only one nitrogen atom per molecule of the compound?

The amount of sodium sulphate formed when 1 L of 0.1 M sulphuric acid is allowed to react with 1 L of 0.1 M sodium hydroxide is …………..

The volume occupied by 2 g of the gas at STP having vapor density 11.2 is ……….. ( Class 11 Chemistry Chapter 1 MCQ )

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