Q.1
Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?
Q.2
Rotary kiln is not involved in the production of
Q.3
Which of the following contains least amount of N₂?
Q.4
Which of the following paper does not require a filler during manufacture?
Q.5
Fish contains about __________ percent oil.
Q.6
Pick out the wrong statement.
Q.7
Electric bulbs are made of __________ glass.
Q.8
Hydrazine (N₂H₄) is used mainly as a/an
Q.9
Common salt is generally not produced commonly by __________ method from brine.
Q.10
Sugar content in sugarcane on cane basis is about __________ percent by weight.
Q.11
Phenolic antiseptics are added in the __________ soap.
Q.12
__________ is produced using molasses as the starting raw material.
Q.13
Pick out the wrong statement.
Q.14
The basic difference between vegetable oils and fats is in their
Q.15
Polythene is a/an __________ polymerisation product.
Q.16
Pick out the wrong statement.
Q.17
The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is
Q.18
In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because
Q.19
Metallic soap is __________ salt of fatty acids.
Q.20
__________ is a polysacchride.
Q.21
Pencillin is made employing __________ fermentation process.
Q.22
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
Q.23
Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
Q.24
Favourable conditions for the liquefaction of gases in general are
Q.25
Polycaprolactum is commercially known as
Q.26
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Q.27
Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
Q.28
Consider the production of ammonia from methene and air as raw materials. The catalyst used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
Q.29
99.5% purity oxygen is used in
Q.30
Baking soda is chemically represented by
Q.31
__________ is an ore of lead.
Q.32
20% oleum means that in 100 kg oleum, there are 20 kg of
Q.33
More than 100 percent of __________ is present in oleum.
Q.34
Fire clay is __________ refractory material.
Q.35
At a given temperature, the equilibrium yield of SO₃ obtained from the oxidation of SO₂ is proportional to (where, P = pressure of the system )
Q.36
Pick out the wrong statement.
Q.37
Cumene (isopropyl benzene) is made by
Q.38
__________ is a thermosetting plastic.
Q.39
Commercial production of Vanaspati is done by __________ of edible vegetable oils.
Q.40
Washing soda is chemically represented by
Q.41
10% oleum comprises of 10% free
Q.42
Calgon used in water treatment is chemically
Q.43
The main use of activated carbon in water treatment is to control
Q.44
Phenol formaldehyde resin is used as an adhesive in making
Q.45
Solvent used for extraction of oil is
Q.46
Pick out the wrong statement.
Q.47
Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
Q.48
Poly Vinyl Chloride (P.V.C.) is a __________ material.
Q.49
Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
Q.50
The gasification reaction represented by, C + H₂O = CO + H₂, is a/an __________ reaction.
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