Question # 1

SO₂ and NO₂ pollution by increasing

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Alkalinity

Acidity

Neutrality

Buffer action

At 500 K the equilibrium constant for reaction cis-C₂H₂CI₂ trans-C₂H₂CI₂ is 0.6. At the same temperature the equilibrium constant for the reaction trans-C₂H₂CI₂ cis-C₂H₂CI₂ will be

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0.60

1.67

0.66

2.6

For the carbylamine reaction we need hot alc.KOH and

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Any amin and chloroform

Chloroform and Ag powder

A primary amine and chloroform

A mono alkyl amine and trichlorom-ethane

Among the alkaline earth metals the element forming predominantly covalent compounds is

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Be

Mg

Sr

Calcium

Which of the following transition metal ions will have definite value of magnetic moment?

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Sc³⁺

Ti³⁺

Cu⁺

Zn²⁺

The rate of reaction between A and B increases by a factor of 100 when the concentration with respect to A is increased 10 folds the order of reaction w.r.t A is

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10

1

4

2

All the naturally occurring processes proceed spontaneously in a direction which lead to

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Decrease of entropy

Increase of enthalpy

Increase of free energy

Decrease of free energy

Which species represents the electrophile in aromatic nitrotaion?

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NO^-₂

+

NO₂

NO2

NO^-₃

What quantity of limestone (CaCO₃) on heating will give 56 kg of CaO?

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1000 kg

56 kg

44 kg

100kg

In crystal structure of sodium chloride the arrangement of CI^- ions is

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Fee

Both fee and bcc

Bee

None of these

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

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