Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

EASY

Earn 100

Hydride gap corresponds to elements of _____

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Important Questions on Hydrogen

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Among the fuels given, the fuel with the highest calorific value

(kJ / mole)

is

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R

Assertion A: Hydrogen is an environment friendly fuel.

Reason R: Atomic number of hydrogen is $1$ and it is a very light element.
In the light of the above statements, choose the correct answer from the options given below

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Match List-I with List-II :

	List-I Chemical Compound		List-II Used as
a	Sucralose	i	Synthetic detergent
b	Glyceryl ester of stearic acid	ii	Artificial sweetener
c	Sodium benzoate	iii	Antiseptic
d	Bithional	iv	Food preservative

Choose the correct match :

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Which of the following acts as oxidising agent in hydrogen- oxygen fuel cell?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

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

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Hydrides are formed with which of the following substances?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

In respect of Oxy-hydrogen torch for cutting & welding, choose the correct statements

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Liquid hydrogen mixed with liquid oxygen is used as _______

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

The temperature of ______

K

is generated when atomic hydrogen is allowed to recombine on the surface to be welded.

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Specific impulse of a rocket and the critical temperature of the fuel reacted in the motor of the rocket has the relationship

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

The correct statements among

(a)

to

(d)

regarding

H_{2}

as a fuel are:

(a)

It produces less pollutants than petrol

(b)

A cylinder of compressed dihydrogen weighs

\sim 30

times more than a petrol tank producing the same amount of energy

(c)

Dihydrogen is stored in tanks of metal alloys like

N a N i_{5}

(d)

On combustion, values of energy released per gram of liquid dihydrogen and LPG are

50

and

142 k J

, respectively

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Hydrogen gas is not widely used as a reducing agent because:

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Which of the following elements does not form hydride on direct heating with hydrogen?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Which of the following option best describes the hydrogen economy ?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Which of the following statements are correct?

a) $NaH (s)$ reacts violently with water to form $NaOH$ and $H_{2}$

b) An example for electron rich hydride is ${NH}_{3}$

c) Nickel; forms saline hydride

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

A hybrid rocket propellant uses

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

In a hydrogen- oxygen fuel cell, combustion of hydrogen occurs to

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

A hydrogen fuel cell uses hydrogen and

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

On burning hydrogen in air the colour of flame is

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Uses of Dihydrogen

Which of the following acts as a catalyst in Haber's process?