The Language of Chemistry Test

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The Language of Chemistry Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is the name of NaClO₂?

A
Sodium chlorate

B
Sodium chloride

C
Sodium chlorite

D
Sodium per chlorate
Question 2
1 / -0

What will be the volume of 2 gm of hydrogen at S.T. P?

A
2 litres

B
11.2 litres

C
22.4 litres

D
10 litres
Question 3
1 / -0

Which of the following is a balanced chemical equation for the following reaction?
Sodium hydroxide + sulphuric acid -> Sodium sulphate + water

A
Na(OH)₂+ H₂SO₄ -> Na₂SO₄ + 2H₂O

B
2NaOH + 2H₂SO₄ -> 2Na₂SO₄ + 2H₂O

C
2NaOH + H₂SO4 Na₂SO₄ + 2H₂O

D
2NaOH + H₂SO₄ Na₂SO₄ + H₂O
Question 4
1 / -0

Which of the following equations is balanced?

A
KNO₃ ->KNO₂ + O₂

B
2KNO₃ ->2KNO₂ + O

C
2KNO₃ ->KNO₂ + 2O₂

D
2KNO₃ ->2KNO₂ + O₂
Question 5
1 / -0

How much 22.4 litres of NH₃ will weigh at S.T.P?

A
44.8 gm

B
22.4 gm

C
17 gm

D
11 gm
Question 6
1 / -0

What is true about CO2 in the reaction?
CaCO₃ + 2HCl -> CaCl₂ + H₂O + CO₂

A
44 litres of CO₂ is produced at S.T.P.

B
22 gram of CO₂ is produced at S.T.P.

C
22.4 litres of CO₂ is produced at S.T.P.

D
22.4 Grams of CO₂is produced at S.T.P.
Question 7
1 / -0

Which of the following is a polyatomic ion?

A
Peroxide

B
Stannous

C
Phosphide

D
Iodide
Question 8
1 / -0

What is valency of hydroxide in calcium hydroxide molecule?

A
- 2

B
- 1

C
2

D
1
Question 9
1 / -0

What information cannot be derived from a chemical equation?

A
Relative molecular masses of different substances

B
Law of indestructibility of matter

C
Concentration of reactants and products

D
Quantity of reactants taking part and products formed
Question 10
1 / -0

Which of the following equations follows `Law of conservation of matter`?

A
KNO₃ -> KNO₂ + O₂

B
K₂Cr₂O₇ + 14HCl -> 2KCl + CrCl₃+ 7H₂O + 3Cl₂

C
2Pb(NO₃)₂ -> 2PbO + 4NO₂ + O₂

D
2NaOH + H₂SO₄ -> Na₂SO₄ + 2H₂O
Question 11
1 / -0

What is the name of the compound Ca₃N₂?

A
Nitrocalcium

B
Calciumnitride

C
Calcium nitrate

D
Nitrous calcium
Question 12
1 / -0

What information is conveyed by the following equation?
CaCO₃ + 2HCl -> CaCl₂ + H₂O + CO₂

A
Rate of reaction

B
Concentration of the reactants

C
Amount of products formed

D
Physical states of reactants and products

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The Language of Chemistry Test - 3

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The Language of Chemistry Test - 3

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Question 1

Sodium chlorate

Sodium chloride

Sodium chlorite

Sodium per chlorate

Question 2

2 litres

11.2 litres

22.4 litres

10 litres

Question 3

Na(OH)2 + H2SO4 -> Na2SO4 + 2H2O

2NaOH + 2H2SO4 -> 2Na2SO4 + 2H2O

2NaOH + H2SO4 Na2SO4 + 2H2O

2NaOH + H2SO4 Na2SO4 + H2O

Question 4

KNO3 ->KNO2 + O2

2KNO3 ->2KNO2 + O

2KNO3 ->KNO2 + 2O2

2KNO3 ->2KNO2 + O2

Question 5

44.8 gm

22.4 gm

17 gm

11 gm

Question 6

44 litres of CO2 is produced at S.T.P.

22 gram of CO2 is produced at S.T.P.

22.4 litres of CO2 is produced at S.T.P.

22.4 Grams of CO2 is produced at S.T.P.

Question 7

Peroxide

Stannous

Phosphide

Iodide

Question 8

- 2

- 1

2

1

Question 9

Relative molecular masses of different substances

Law of indestructibility of matter

Concentration of reactants and products

Quantity of reactants taking part and products formed

Question 10

KNO3 -> KNO2 + O2

K2Cr2O7 + 14HCl -> 2KCl + CrCl3 + 7H2O + 3Cl2

2Pb(NO3)2 -> 2PbO + 4NO2 + O2

2NaOH + H2SO4 -> Na2SO4 + 2H2O

Question 11

Nitrocalcium

Calciumnitride

Calcium nitrate

Nitrous calcium

Question 12

Rate of reaction

Concentration of the reactants

Amount of products formed

Physical states of reactants and products

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Na(OH)₂+ H₂SO₄ -> Na₂SO₄ + 2H₂O

2NaOH + 2H₂SO₄ -> 2Na₂SO₄ + 2H₂O

2NaOH + H₂SO4 Na₂SO₄ + 2H₂O

2NaOH + H₂SO₄ Na₂SO₄ + H₂O

KNO₃ ->KNO₂ + O₂

2KNO₃ ->2KNO₂ + O

2KNO₃ ->KNO₂ + 2O₂

2KNO₃ ->2KNO₂ + O₂

44 litres of CO₂ is produced at S.T.P.

22 gram of CO₂ is produced at S.T.P.

22.4 litres of CO₂ is produced at S.T.P.

22.4 Grams of CO₂is produced at S.T.P.

KNO₃ -> KNO₂ + O₂

K₂Cr₂O₇ + 14HCl -> 2KCl + CrCl₃+ 7H₂O + 3Cl₂

2Pb(NO₃)₂ -> 2PbO + 4NO₂ + O₂

2NaOH + H₂SO₄ -> Na₂SO₄ + 2H₂O