Question # 1

The elements that do not conduct heat and electricity are called.

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Metallurgy

Non metal

Metalloid

Alloy

Process of heating the concentrated ore to high temperature in excess of air is called.

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Roasting

Smelting

Bessemerization

All

Which colour of HI is ?

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Orange

Purple

Red

Colourless

In a Reversible Reaction if Qc = Kc then.

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Reaction is occuring in forward direction

Reaction is occuring in Reverse direction

Equilibrium has been allained

Reaction is not at equilibrium

Which of one of the following is used as as fumigant:

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Ethyl alcohol

ethylene oxide

ethylene glycol

diethyl ether

In an irreversible reaction dynamic equilibrium:

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Never establishes

Established before the completion of reaction

Establishes after the completion of reaction

Establishes readily

Formula of Methyl alcohol

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CH₅-OH

CH₃-CH₂-OH

All of them

None of these

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Which one of the diseases causes severe diarrhea and can be fatal?

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Jaundice

Dysentery

Cholera

Typhoid

Carbon content in coke is.

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80%

98%

70%

88%

Which one of the following is polmerized to from benzene?

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ethane

ethene

methane

ethyne

High concentration of which metal clogs the fish gills.

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Zinc

Aluminium

Sodium

Copper

Which disease cause liver inflammation?

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Typhoid

Jaundice

cholera

Hepatitis

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