The sum number of neutrons and protons in
radioactive isotopes of hydrogen is

The catalyst used in process of manufacture
of H2
from water gas is

The most abundant isotope of hydrogen
is -

The n/p ratio for 1H1
is -

Ordinary hydrogen at room temperature is a
mixture of -

Hydrogen resembles

Hydrogen is

The lighest element is -

Para hydrogen is -

Atomic hydrogen is obtained by

Which of the following statement is correct

Which of the following produces hydrolith with
dihydrogen

Ratio of O–H2
and p–H2
at room temperature

is -

Hydrogen economy refer to -

Like halogens, Hydrogen

Hydrogen cannot be placed with alkali metals
because

Both temporary and permanent hardness is
removed on boiling water with

Temporary hardness is caused due to the
presence of -

High boiling point of water is due to

Density of ice is -

Which of the following is not true-

H–O–H bond angle is

Hydrogen peroxide is not -

The bleaching properties of H2O2
are due to

its -

Hydrogen peroxide has a -

Hydrogen peroxide is manufactured by the
autoxidation of

Decomposition of H2O2

is retarded by

H2O2

is stored in

H2O2

is prepared in the laboratory when -

Calgon is an industrial name give to -

Zeolites are extensively used in -

Permutit is -

Ortho and Para hydrogen differ

When zeolite, which is hydrated sodium
aluminium silicate, is treated with hard water
the sodium ions are exchanged with -

In Bosch’s process which gas is utilised for
the production of hydrogen

The gas used in the hydrogenation of oils
persence of nickel as a catalyst is -

Water softening by Clarke’s process uses

Which statement is wrong -

The ratio of electron, proton and neutron in
tritium is -

The nuclei of tritium (H3

) atom would contain

neutrons -

The adsorption of hydrogen by metals is called -

Ionic hydrides are usually

Water is said to be permanently hard when it
contains -

Which is poorest reducing agent

Which method can not be used to remove
hardness of water -

Hydrogen can be prepared by mixing steam
and water gas at 500°C in the presence of Fe2O3
and Cr2O3
. This process is called

Ortho Hydrogen and para Hydrogen resembles
in which of the following property

A molten ionic hydride on electrolysis gives

Nascent hydrogen consists of -

Hardness of water is due to dissolved impurities
of -