Hydrogen And Its Compounds - Inorganic Chemistry - Chemistry Previous Year Questions

1

2017 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2017

In the manufacture of hydrogen from water gas $\left(\mathrm{CO}+\mathrm{H}_2\right)$, which of the following is correct statement?

A

CO and $\mathrm{H}_2$ are separated based on difference in their densities.

B

$\mathrm{H}_2$ is removed by occlusion with Pd .

C

CO is oxidised to $\mathrm{CO}_2$ with steam in the presence of a catalyst followed by absorption of $\mathrm{CO}_2$ in alkali

D

Hydrogen is isolated by diffusion.

Open complete paper

2

2018 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2018

$\mathrm{H}_2 \mathrm{O}_2$ is

A

an oxidising agent

B

a reducing agent

C

both oxidising and reducing agent

D

neither oxidising nor reducing agent

Open complete paper

3

2018 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2018

Which of the following ions will cause hardness in water?

A

$\mathrm{Ca}^{2+}$

B

$\mathrm{Na}^{+}$

C

$\mathrm{Cl}^{-}$

D

$\mathrm{K}^{+}$

Open complete paper

4

2019 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2019

Which of the following is not true regarding the usage of hydrogen as a fuel?

A

High calorific value

B

The combustible energy of hydrogen can be directly converted to electrical energy in a fuel cell

C

Combusion product is ecofriendly

D

Hydrogen gas can be easily liquefied and stored

Open complete paper

5

2021 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2021

Permanent hardness cannot be removed by

A

using washing soda

B

Calgon's method

C

Clark's method

D

ion exchange method

Open complete paper

6

2023 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2023

The composition of water gas is

A

\(\mathrm{CO}(g)+\mathrm{N}_2(g)\)

B

\(\mathrm{CH}_4(g)\)

C

\(\mathrm{CO}(g)+\mathrm{H}_2 \mathrm{O}(g)\)

D

\(\mathrm{CO}(g)+\mathrm{H}_2(g)\)

Open complete paper

7

2023 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2023

A \(30 \%\) solution of hydrogen peroxide is

A

'30 volume' hydrogen peroxide

B

'10 volume' hydrogen peroxide

C

'50 volume' hydrogen peroxide

D

'100 volume' hydrogen peroxide

Open complete paper

8

2024 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2024

Which one of the following properties is generally not applicable to ionic hydrides?

A

Non-volatile

B

Non-conducting in solid state

C

Crystalline

D

Volatile

Open complete paper

9

2024 · Chemistry · Inorganic Chemistry · Hydrogen And Its Compounds

KCET 2024

The correct decreasing order of boiling point of hydrogen halides is

A

$\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}$

B

$\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}$

C

$\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}$

D

$\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}$

Open complete paper