Question # 1

___________ is use as a cooling medium for nuclear reactors

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Ne

He

Ar

Kr

Usually the percentage of moisture is paper is

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1- 3%

4-6%

6-8%

5%

Down's cell is used to prepare.

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Sodium carbonate

Sodium bicarbonate

sodium metal

Sodium hydroxide

Which alkyl halide does not form Grignard's reagent.

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CH3-Br

CH3-Cl

CH3- F

CH3-I

Bone ash contain calcium phosphate

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40%

50%

70%

80%

Magnesium metal does not burn in the jar of

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N2

O2

Ne

N2 and O2

Which halogen occurs naturally in a positive oxidation state

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Fluorine

Chlorine

Bromine

Iodine

Isopropyl alcohol on oxidation gives

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Acetaldehyde

Acetone

Ether

Propene

Phenol is the derivative of

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Alkane

Aromatic hydrocarbon

Aliphatic hydrocarbon

Alkene

Flavour of ethyl butyrate is

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Orange

Pine apple

Banana

Apricot

Which compound is alicyclic in nature.

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Cyclobatane

Iso batane

n butane

Toluene

Which one is symmetrical ketone

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Acetone

Methyl ethyl ketone

Methyl n propyl ketone

2- pentonone

Micronutrients are required in quantity ranging from

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4g-40g

6g-200g

6kg-200kg

4kg-40kg

Which one of the following gases exist in monoatomic form.

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Ozone

Nitrogen

Krypton

Phosphine

Which chemical reduces the acidity of soil.

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Lime

Urea

Ammonium nitrate

Ammonium sulphate

Which acid can not be stored in glass bottles.

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HCl

HF

H2SO4

HNO3

Aldehyde react with hydroxyl amine in acidic solution to give

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An oxime

Aldol

Polymer

Acetic acid

Which one of the following plastic is a thermosetting plastic.

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PVC

Polystyrene

Polyethene

Bakelite

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