Question # 1

A carbohydrate that cannot be acid hydrolysed is called.

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Monosaccharides

Di saccharides

Poly saccharides

Starch

Which compound will have maximum repulsion with H2O

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C6H6

C2H5OH

CH2CH2CH2OH

CH5-O-OH3

Acetaldehyde react, with Grignard reagent to form

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Primary alcohol

Secondary alcohol

Ter alcohol

Carboxylic acids

Which of the following is a reddish brown gas

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N₂O₃

NO₂

N₂O₃

N₂O₅

The bond angle between any two SP²Hydridized orbitals is of

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180°

109.5°

120°

107.5°

Acetic acid manufactured by

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Distillation

Fermentation

Ozonolysis

Esterification

NH4NO3 on heating at 200 ^oC changes to

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N2O

NO

NO2

N2O4

The pH of truly acidic rain is

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7-6.8

6.5-6

6-5.6

less than 5

The element of 2nd period, which has highest ionization energy from the following is

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Be

C

N

O

Which of the following are alkaline earth metals?

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Be, Mg, Ca

Li, Na, K

Fe, CO, Ni

B, Al, Ga

In which hybridization bond angle is maximum

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sp3

sp2

sp

sp3 and sp have same angles

Chlorobenzene on nitration with conc. HNO3 and Conc. H2SO4 gives.

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m -chloronitrobenzene

o and p chloronitrobenzene

o and m chloronitrobenzene

mixture of O2 m and p chloronitrobenzene

------------- does not belong to Alkaline-Earth metals

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Be

Ra

Ba

Rn

The oxides of metal sare generally

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Acidic

Basic

Neutral

Amphoteric

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Which allotrope of phosphorus has layers like graphite.

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white phosphorus

Red phosphorus

Black Phosphorus

Amorphous phosphorus

Flavour of ethyl butyrate is

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Orange

Pine apple

Banana

Apricot

Fluorine is in group VII A of periodic table. Its chemistry will most closely resembles that of.

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Argon

Boron

Iodine

Sulphur

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