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Chemistry
316)Water is good solvent as
	it is in dilute form		its molecules are highly polar
	its boiling point is high		it is in liquid form
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317)Oxygen and Ozone molecules are
	isotopes		isomers
	isomorphous		allotropes
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318)Which one of the following is the process of heavy water manufacturing?
	Electrolysis of water containing 30% of NaOH		Fractional distilation of water
	Fractional diffusion of steam		Fractional crystallization of ice
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319)Diamond and graphite are
	allotropes		isobars
	isomers		isotopes
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320)Which noble gas was discovered first of all?
	Neon		Helium
	Xenon		Argon
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321)Natural gas primarily composed of -
	a mixture of octanes		n-butane
	methane		n-octane
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322)Cinnabar is an ore of-
	lead		zinc
	mercury		copper
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323)Milk is example of
	dialysis		coagulation
	suspension		emulsion
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324)Safety match contains
	red phosphorus		white phosphorus
	mixture of red and white phosphorus		P4S8
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325)Soaps are prepared from
	fats		fats and acids
	alkalis and acids		fats and alkalis
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326)Which one of the following is Producer gas?
	CO + N2		C + H4
	CO3 + H		CO2 + H2
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327)The coal varity that contains higher percentage of carbon is
	Peat		Lignite
	Bituminous		Anthracite
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328)18 carat gold contains
	25% gold		75% gold
	30% gold		60% gold
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329)Bakelite is
	thermosetting		elastomer
	addition polymer		thermoplastic
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330)Blue-black inks are made from
	ferrous sulphate and a blue dye		ferrous sulphate and H2SO4
	ferrous sulphate, tannic acid and blue dye		ferrous sulphate and tannic acid
Answer :

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