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

Which is not a water softener

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 -

H2
molecule has two electrons and two nuclei.
In which form of hydrogen the spin of electrons
and also the spin of nuclei in opposite directions

What is the false about Lane’s process

Pure H2O2 is -

The molecule of ortho hydrogen is distinguished
from para hydrogen -

Metals like platinum and palladium can adsorb
large volumes of hydrogen under special
conditions. Such adsorbed hydrogen by the
metal is known as

Correct order of occlusion property is

Which of the following statements concerning
protium, deuterium and tritium is not true -

Compound having open chain is

Ionic hydrides is -

Hydrogen peroxide is now generally prepared
on industrial scale by the -

Deuterium atom has -

H2O2

restores the colour of old lead paintings,
blackened by the action of H2S gas by

At absolute zero -

The above flowsheet refers to which process

Which two substances are same ?

Which of following represents dihydrogen ?

Components of syngas are -

Which compound of Z is called oxidane ?

Which of the following process will produce hard
water ?

The reagent commonly used to determine
hardness of water titrimetrically is -

In context with the industrial preparation of
hydrogen from water gas (CO+H2

), which of the
following is the correct statement ?

Amongst H2O, H2S, H2Se and H2

Te, the one

with the highest boiling point is -

Polyphosphates are used as water softening
agents because they -