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Chemistry
91)For plant growth, the most important compounds are made up of
	carbon		sulphur
	nitrogen		sodium
Answer :
92)The compound obtained by heating a caustic soda solution with linseed oil can be used as a
	fertiliser		plastic
	fuel		soap
Answer :
93)The two gases used in the industrial preparation of sulphuric acid are
	sulphur dioxide and oxygen		sulphur dioxide and hydrogen
	sulphur dioxide and chlorine		carbon dioxide and oxygen
Answer :
94)The gases used in the manufacture of ammonia are
	nitrogen and oxygen		nitrogen and hydrogen
	nitrogen and methane		oxygen and nitric oxide
Answer :
95)The metal that occurs in the pure form in the earth's crust is
	sodium		copper
	platinum		magnesium
Answer :
96)Chloromycetin is
	an antiseptic		antidepressant
	analgesic		antibacterial
Answer :
97)In the industrial production of vegetable ghee, the process involved is
	oxidation		ionisation
	reduction		dissociation
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98)Chemically, cane sugar is
	sucrose		fructose
	lactose		glucose
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99)Oxidation is a process which involves
	the gain of electrons		the loss of electrons
	the gain of hydrogen		no change of electrons
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100)The number of isotopes in which hydrogen can exist are
	1		3
	4		2
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101)For respiration, deep-sea divers use a mixture of
	hydrogen and oxygen		oxygen and carbon dioxide
	oxygen and nitrogen		oxygen and helium
Answer :
102)The boiling point of water, on Kelvin scale of temperature is
	100		273
	373		263
Answer :
103)In the process of dialysis, used on patients with affected kidneys, the phenomenon inveoved is
	diffusion		osmosis
	absorption		electrophoresis
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104)Milk is an example of
	gel		suspension
	foam		emulsion
Answer :
105)Gunpowder consists of a mixture of
	sulphur, sand and charcoal		sand, TNT and potassium nitrate
	TNT and charcoal		potassium nitrate, sulphur and charcoal
Answer :

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