Question # 1

Acetic acid can be obtained from CH3MgI by treatment with.

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H2O

CINH2

CO2

HCHO

In which compound, the oxidation state of boron in not +3

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H2BO3

Ca2B2O11

Na2B4O7

Mg3B2

Boric acid can not be used.

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As antiseptic in medicine

For washing eyes

In soda bottle

For enamels and glazes

Which one of the following polymers has no peptide linkage in it.

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Terlene

Nylon -6,6

Protein

None of these

NO2 can be obtained by heating.

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NaNO3

KNO3

Pb(NO3)2

NH3NO3

Al reacts with caustic soda to form

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Sodium aluminates

Aluminium hydroxide

Aluminium oxide

sodium tetra aluminate

The avoid the formation of toxic compounds with chlorine which substance is used for disinfecting water

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KMnO₄

O₃

Alums

Chloramines

The residence time of NO is

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Few hours

1 day

3 days

4 days

Which is more basic

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RbOH

NaOH

KOH

Li OH

The state of hybridization of "C" in ethane is

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SP

sp²

dsp²

sp³

Which one is not a meta directing group

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-COOH

-CHO

-COR

-NH₂

Which is insoluble in water.

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BeSO4

MgSO4

CaSO4

BaSO4

Air of the following tests are used to identify aldehydes except.

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Tollen's test

Fehling test

Baeyer's test

Benedict test

Boron usually exist in nature as

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Borides

Oxborates

Free element

It is a artificial element

In [Co(NH3)6]+3 the coordination number of cobalt is.

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Zero

Two

Four

Six

Out of all the elements of group VA, the highest ionization energy is possessed by

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N

As

Sb

Bi

Secondary alkyl halides are those in which halogen atom is attached with a carbon atom which is further attached to.

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One beta carbon

Two beta carbon

Three beta carbon

Four beta carbon

Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects

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eyes

ears

stomach

nose

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