Question # 1

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

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1-Propanol

2-Propanol

2-Methyl2-Proponal

Ethanol.

Which one of the following has the lowest boiling point?

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B

Al

Ga

Ti

Sulphonation of benzoic acid produces mainly

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o-Sulphobenzoic acid

m-Sulphobenzoic acid

p-Sulphobenzoic acid

o- and p-Sulphobenzoic acid

The following has zero valency

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Na

Be

Al

Kr

Phosphide ion has the electronic structure similar to that of

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Nitride ion

Fluoride ion

Sodium ion

Chloride ion

Carbon monoxide is pollutant as it

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Inactivates nerves

Inhibits glycolysis

Combines with oxygen

Combines with hemoglobin

Fluorine does not show positive oxidation states due to the absence of

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d-orbitals

s-orbitals

p-orbitals

None

Which one is primary alcohol?

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Buten-2-ol

Propan-2-ol

Butaon-1-ol

2, 3-Dimethylhexane-4-ol

The wire in the flash bulbs is made up of

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Mg

Ba

Cu

Ag

Ionic solids with defects, contain

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Equal number of cation and anion vacancies

Interstitial anions and anion vacancies

Cation vacancies only

Cation vacancies and interstitial cations

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

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Chlorination, nitration, reduction

Nitration, Chlorination, reduction

Nitration, reduction, chlorination

Nitration, reduction, acylation, chorination, hydrolysis

The osmotic pressure of solution increases if

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Temperature is decreased

Solution constant is increased

Number of solute molecules are increased

Volume is increased

Bond angle is minimum for

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H₂O

H₂S

H₂Se

H₂Te

Which of the following reagent cannot be used for preparing alkyl chloride from alcohol?

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HCl + anhyd. ZnCl₂

NaCl

PCl₅

SOCl₂

Bromine is obtained on a commercial scale from

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Caliche

Carnallite

Common satl

Cryolite

Helium-oxygen mixture is used by deep sea divers in preference to nitrogen-oxygen mixture because

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Helium is much less soluble in blood than nitrogen

Helium is much less soluble in blood than helium

Under the sea nitrogen and oxygen react to give poisonous nitric oxide

Nitrogen is highly soluble in water.

Isopropyl alcohol on oxidation forms

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Acetone

Ether

Ethylene

Acetaldehyde

In the manufacture of iron from haematite, limestone is added to act as.

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Flux

A reducing agent

Slag

An oxidizing agent

Which of the following has least mass?

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2 gram atom of nitrogen

3 x 10²³atoms of C

1 mole of S

7.0 g of Ag.

Oleum is

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Castor oil

Oil of vitriol

Fuming of H₂SO₄

None of them

Addition of iron fillings to CuSO₄solution caused precipitation of Cu owing to the

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Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

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