Which of the following is not an insecticide?

Alcohol is produced by the

Chloramines are used in water treatment for

Transportation ofoleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

Nickel is not used as a catalyst in the

Sudden temperature fluctuation does not affect pyrex glass, because of its

Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

Neoprene is chemically known as

__________ glass is used for the manufacture of optical glass.

__________ of rubber decreases after its vulcanisation.

Industrial production of chloroform requires acetone and

Mannheim furnace is used in the manufacture of

Which of the following is not required in the manufacture of soda ash by Solvay process ?

Phosphoric acid is prepared from

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

Shrinkage volume in cement setting does not depend upon the

Bisphenol A is produced by the condensation of acetone with

Varnish does not contain

Polymerisation product of C₂F₄ (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called

Glycerine is recovered from lye by

A mineral is termed as 'ore', if

The most stable allotropic form of phosphorous is the __________ phosphorous.

__________ iron is the purest form of iron.

__________ nature of hypo (sodium thiosulphate) makes it useful in photography.

Sugar content in sugarcane on cane basis is about __________ percent by weight.

Plasticisers are added to paints to

Pick out the wrong statement.

Boiling of water containing temporary hardness produces

Pencillin, an antibiotic drug was discovered by

Styrene (a monomer for the production of polystyrene) is commercially produced by

Which of the following sugars is the sweetest?

Which of the following sugars is the sweetest?

Saponification number of an oil or fat

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Ore concentration by froth floatation utilises the __________ of ore particles.

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

Inversion of sucrose produces

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

Function of thinner in a paint is to

Enamels

__________ is an ore of lead.

Pick out the wrong statement.

Resistance to fusion of the refractory under a steady rising temperature condition is called

Favourable conditions for the liquefaction of gases in general are

Starting material for the commercial production of ethyl alcohol in India is

Hydrogenation of oil takes place in a/an __________ reactor.

The purpose of tanning in leather industry is to

Which of the following processes does not produce Cl₂ as a co-product during the manufacture of caustic soda ?

The main use of activated carbon in water treatment is to control

Presence of carbonaceous matter in the sewage