Question # 1

Hydrogenation of alkenes/alkynes inthe presence of Ni as catalyst at 3000°C result in the formation of corresponding alkanes. This reaction is known as

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Sabatier-senderens reaction

kolbes reaction

Cannizaro's reaction

Haloform reaction

Which compound was recognized the parent member of aromatic compounds

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Aniline

Phenol

Benzene

Toluene

Which of the following substances is used as an antiknock compound?

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Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyle acetate

Preparation of vegetable ghee involves

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Halogenations

Hydrogenation

Hydroxylation

Dehydrogenation

The method involved for electrolysis of Na or K salts of carboxylic acids

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Sabatier's sendrens reaction

Kolbe's method

Clemmensen

Wolf kishner reduction

The difference between amount of heat actually released and that of calculated is called

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Bonding energy

Activation energy

Resonance energy

Transition energy

Benzene does not undergo polymerization and it is also resistant to

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Reduction

Oxidation

Alkylation

Ozonolysis

the unreactivity of alkanes is based upon

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Inertness of sigma bond

Non-polarity of the bonds

Both A and B

None of above

Formula of chloroform is

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CH₃CI

CCI₄

CH₂CI₂

CHCI₃

De halogenatiion of tetrahalides happens in the presence of active metal like

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Zn

Mg

Both a and b

None of them

Raney - nickel is the alloy of Ni with

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Pt

Al

Cu

Pd

All are ortho & Para directing except

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X

OH

NR₃

NH₂

The electrophile in aromatic sulphonation is

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H₂SO₄

HSO₄

SO₃

SO₃⁺

When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product

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Na₂CO₃

NaHCO₃

Ca(OH)₂

CaCO₃

C₁₈and onward hydrocarbons are normally

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Gases

Liquids

Solids

Plasma

When acetylene is passed through a copper tube at 300°C, it polymerizes to

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Polyacetylene

polyethylene

Benzene

None of these

When n-hexane is heated in the presence of Pt at 500°C, it cyclists to give

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Benzene

Cyclohexene

Benzene

Toluene

Benzene has a -------- structure

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Pentagonal

Hexagonal

Heptagonal

Tetragonal

Which is more active ?

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Alkanes

Alkenes

Alkynes

Benzene

An alkynes having Carbon count of 20 is

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gas

liquid

Solid

None

During reaction of O₂and alkenes, a product:

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Glycol

Epxide

Halohydrin

Ethylene glycol

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?

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Chlorination, nitration, reducing

Nitration, chlorination, reducition

Nitration, reduction,chlorination

Nitration, reduction, acylation, chlorination, hydrolysis

Hydrocarbons are organic compounds which contain elements such as

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Hydrogen

Carbon

Hydrogen and carbon

Halogens

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