Question # 1

The presence of a double bond in a compound is the sign of.

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Saturation

Unsaturation

Substitution

None of these

Which one of the following gases is used for artificial ripening of fruits.

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Ethene

Ethyne

Methane

Propane

Preparation of vegetable ghee involves.

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

Ranney nickel is prepared by reacting dilute NaOH solution with.

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Nickel

Brass

Nickel and aluminum alloy

Nickel oxide

In which reactions alkane is not produced

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Subatier's and Sendern reaction

Koibe's reaction

Wolf -Kishner's reduction

Dow's process

Which gas act as 'Blistering agent'

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Acetylene

Phosphine

Phosgene

Mustard gas

Which one of the following can best be used to distinguish between samples of ethane and ethene

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Aqueous BaCl2

Aqueous bromine

Lime water

Litmus solution

Acetylene reacts with ammoniacal cuprous chloride a red ppt is formed. This red ppt is of

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Copper chlorite

Coper chlorate

Cupric oxide

Copper acetylide

Which one of the following gases is used welding purpose usualy.

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Methane

Ethane

Ethene

Acetylene

Which one is used for manufacture of fertilizers

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Methane

Ethane

Ethene

Ethyne

When methane reacts with Cl₂in the presence of diffused light the products obtained are

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Chloroform only

Carbon tetrachloride only

Chloromethane and dichloromethane

Mixture of a, b, c

A gas decolorizes alkaline KMnO4 but has no action with ammoniacal AgNO3, this gas may be

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C2H2

C2H4

C2H6

CH4

Saturated hydrocarbon are also called.

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Olefins

Acetylenes

Paraffins

Alicyclic

Synthetic rubber is made by polymerization of

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Vinylaecetate

Acetylene

Divinylacetylene

Chloroprene

Which compound is least reactive

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CH3-CH3

CH2=CH2

CH=CH

C6H6

Which is called marsh gas

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S2Cl2

SOCl2

CH4

CHBr3

Which one of the following gases is used for artificial ripening of fruits

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Ethene

Ethyne

Methane

Propane

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

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Hund's rule

Markownikov's rule

Pauli's Exclusion Principle

Aufbau Principle

The number of acidic hydrogen present in 1- Propyne is

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1

2

3

4

Formula of chloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCl₃

Which has reddish brown colour.

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silver acetylide

Copper acetylide

BaSO4

Aqueous KMnO4 solution

The general formula for Alkene having one double bond is

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C_nH_2n+1

C_nH_2n

C_nH_2n-2

C_nH_2n+2

When methane reacts with Cl2 is commonly known as

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Mustard gas

Laughing gas

Phosgene gas

Bio gas

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