Inorganic Chemistry Test

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Inorganic Chemistry Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is the boiling point of H₂SO₄?

A
338°C

B
770°C

C
473°C

D
127°C

Solution

The boiling point of H₂SO₄ is 338°C.
Question 2
1 / -0

Which of the following does not react with H₂SO₄ under any condition?

A
Na

B
Fe

C
Cu

D
Pt

Solution

Platinum is the most unreactive metal.Thus, it does not react with H₂SO₄ under any condition.
Question 3
1 / -0

Which of the following gases is evolved when H₂SO₄ reacts with metal sulphide?

A
SO₂

B
O₂

C
H₂S

D
SO₃

Solution

When H₂SO₄ reacts with metal sulphide, H₂S gas evolves.
Question 4
1 / -0

Which of the following products is formed with glucose when added in H₂SO₄ solution?

A
Black spongy mass of carbon rises up

B
White precipitates settle down

C
Reddish brown mass rises up

D
Black precipitates settle down

Solution

When glucose is added in H₂SO₄ solution, black spongy mass of carbon rises up.
Question 5
1 / -0

Which of the following statements is incorrect about sulphuric acid?

A
It reacts with barium chloride and forms white precipitates.

B
It releases SO₂ on heating with copper.

C
It forms H₂ gas on heating with NaCl.

D
It is used in the extraction of metals.

Solution

Statement 3 is incorrect because hydrogen gas does not evolve on reaction with sulphuric acid.

The following reaction takes place on reaction between them:

NaCl (s) + H₂SO₄ (l) -------> HCl (g) + NaHSO₄ (s)
Question 6
1 / -0

Assertion (A): Drinking water is chlorinated.

Reason (R): Chlorination makes water transparent, chemically rich and very nutritious.

A
Both A and R are true, and R is the correct explanation of A.

B
Both A and R are true but R is not a correct explanation of A.

C
A is true but R is false.

D
A is false but R is true.

Solution

Chlorination is the process which is used to kill certain bacteria and other microbes in water as chlorine is highly toxic. Thus, the given assertion is true, but reason is not correct.
Question 7
1 / -0

Heavy water is

A
D₂O

B
H₂O along with Ca, Mg, carbonate

C
H₂O₂

D
Sea water (H₂O + Salt)

Solution

D₂O is known as heavy water.
Question 8
1 / -0

Nitrogen was discovered by

A
Scheele

B
Lavoisier

C
Daniel Rutherford

D
Cavendish

Solution

Nitrogen was discovered by Daniel Rutherford.
Question 9
1 / -0

Substances burn more rapidly in pure oxygen than in air because

A
air contains helium

B
air has a lower concentration of oxygen than pure oxygen

C
air contains methane

D
air contains ozone

Solution

Substances burn more rapidly in pure oxygen than in air because air has a lower concentration of oxygen than pure oxygen.
Question 10
1 / -0

Oxygen is prepared on a large-scale from

A
potassium permanganate

B
air

C
water

D
sodium peroxide

Solution

Oxygen is prepared on a large-scale from air.

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Re-Attempt Weekly Quiz Competition

Inorganic Chemistry Test - 2

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Inorganic Chemistry Test - 2

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Question 1

338°C

770°C

473°C

127°C

Solution

Question 2

Na

Fe

Cu

Pt

Solution

Question 3

SO2

O2

H2S

SO3

Solution

Question 4

Black spongy mass of carbon rises up

White precipitates settle down

Reddish brown mass rises up

Black precipitates settle down

Solution

Question 5

It reacts with barium chloride and forms white precipitates.

It releases SO2 on heating with copper.

It forms H2 gas on heating with NaCl.

It is used in the extraction of metals.

Solution

Question 6

Both A and R are true, and R is the correct explanation of A.

Both A and R are true but R is not a correct explanation of A.

A is true but R is false.

A is false but R is true.

Solution

Question 7

D2O

H2O along with Ca, Mg, carbonate

H2O2

Sea water (H2O + Salt)

Solution

Question 8

Scheele

Lavoisier

Daniel Rutherford

Cavendish

Solution

Question 9

air contains helium

air has a lower concentration of oxygen than pure oxygen

air contains methane

air contains ozone

Solution

Question 10

potassium permanganate

air

water

sodium peroxide

Solution

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SO₂

O₂

H₂S

SO₃

It releases SO₂ on heating with copper.

It forms H₂ gas on heating with NaCl.

D₂O

H₂O along with Ca, Mg, carbonate

H₂O₂

Sea water (H₂O + Salt)