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 :

( a ) - ( ii ) , ( b ) - ( i ) , ( c ) - ( iv ) , ( d ) - ( iii )

( a ) - ( iv ) , ( b ) - ( iii ) , ( c ) - ( ii ) , ( d ) - ( i )

( a )-( iii ), ( b )-( ii ), ( c ) - ( iv ) , ( d ) - ( i )

( a ) - ( i ) , ( b ) - ( ii ) , ( c ) - ( iv ) , ( d ) - ( iii )

MEDIUM

Earn 100

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

50% studentsanswered this correctly

Important Questions on Hydrogen

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

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>Dihydrogen as a Fuel

The most abundant elements by mass in the body of a healthy human adult are:

Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75kg person would gain if all

^{1} H

atoms are replaced by

^{2} H

atoms is:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

The isotopes of hydrogen are:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

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

(kJ / mole)

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

Write the four uses of dihydrogen gas.

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

Dihydrogen of high purity

(> 99.95 %)

is obtained through :

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

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>Dihydrogen as a Fuel

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

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

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

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

Why 'Hydrogen is considered to be the best choice among all the alternative fuel options ?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen as a Fuel

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