Thrust imparted to the rocket is governed by the:

(a) third law of thermodynamics

(b) gravitational law

(c) newton’s third law

(d) none of the above

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Which of the following is used in rocket propellants?

(a) H2(l)

(b) O2(l)

(c) N2H4(l)

(d) All of these

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A combination of nitrocellulose and nitroglycerine is a propellant of the type:

(a) hybrid propellant

(b) mono propellant

(c) double base propellant

(d) biliquid propellant

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The poisonous gas evolved in Bhopal tragedy from the pesticide plant of Union Carbide Co. was:

(a) CO                    (b) methyl isocyanate

(c) phosgene          (d) chloropicrin

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Oil of winter green and salol are the esters of:

(a) salicylic acid

(b) lactic acid

(c) acetic acid

(d) sulphanilic acid

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Which of the following is an example of basic dye ?
(a) Alizarin
(b) Malachite green
(c) Indigo
(d) Orange I

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Which of the following is not a chromophore?

(a) —N=N—

(b) —NO

(c) —NO2

(d) —NH2

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Which of the following groups is not an auxochrome ?
(a)-N(CH3)2
(b)-OH
(c)-OCH3
(d) >C=N

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Alizarin a mordant dye is not used in:

(a) cotton dyeing

(b) printing

(c) painting

(d) Chromium lakes for wood dyeing 

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A certain dye was prepared from a plant grown on a large scale in India. Name the dye:

(a) Malachite green

(b) Congo red

(c) Indigo

(d) Turmeric

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