Question # 1

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

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Metallurgy

Non metal

Metalloid

Alloy

_________ acid is used in lead storage batteries as electrolyte.

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CH₃COOH

HCl

HNO₃

H₂SO₄

Main component of Natrual gas.

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CH₃

CH₄

C₂H₆

C₂H₂

In which one of the following is a substitution reaction?

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Halogenations of alkynes

Halogenations of alkenes

Halogenations of alkanes

Bromination of alkenes

The formula of ozone is.

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O₂

O₃

O

CO

Alkanes are also called:

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olefins

Paraffins

aliphatic compound

cyclic compounds

Ethylene glycol can be prepared with the reaction of KMnO₄ and _____

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CH = CH

CH₃ - CH₃

CH₃CH₂CH₃

CH₂= CH₃

Maltose is commonly found in .

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Cereal

Milk

Cotton

Honey

Clark's method is used to remove the hardness of water, in this method which is used.

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Ca(HCO₃)₂

Na-Zeolite

Ca-Zeolite

Ca(OH)₂

The color of hydrogen Iodide is:

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Colourless

Black

Red

Pink

For which reaction Kf is the rate constant?

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Forward reaction

Backward reaction

Upward reaction

Downward reaction

The water of crystallization is responsible for the.

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Melting points of crystals

Boiling points of crystals

Shapes of crystals

Transition point of crystals

Building and Monuments lose their beauty and shine due to

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U.V radiations

Chlorofluoro carbons

Acid rain

IR radiations.

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