Question # 1

Propanone does not undergo

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Oxime formation

Reduction of Fehling solution

Hydrazone formation with hydrazine

Reaction with HCN

Which one of the following statements about melting point of metals is true?

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sodium has a lower melting point than potassium

sodium has a higher melting point than magnesium

potassium has a higher melting point rubidium

lithium has a lower melting point than sodium

Ethyl alcohol reacts with PCL and produces:

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Haloalkane

Alkyl halide & H3PO3,

Alkyl halide & POCl3

Alkyl halides &H3PO4.

In which of these processes are small organic molecules made into macro-molecules?

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethane

The hydrolysis of proteins

Which of the following reactants will be required to form ethene from ethyl chloride

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_{Alcoholic KOH}

Alkaline KMnO4

Aqucous KOH

Aqucous NaOH

Active sulphonating agent during sulphonation of benzene is

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SO2

SO3

SO3H

SO3+

New3spapers can be recycled again and again by how many times?

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5

3

2

4

Which of the following factors is not used to determine the quality of water

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COD

BOD

DO

Available chlorine

This is known fact that the molar volumes of different gases at S.T.P. are

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much larger than the molar volumes of liquids and solids

little bit less than the molar volumes of solids

about the same as the molar volumes of liquids

little bit greeter than the molar volumes of liquids

Which of following is NOT use the polyvinylacetate (PVA)

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An adhesive material

Binder for emulsion

Used as gramophone

None as these

[Ti (H20)6]3+ ion isin colour.

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Yellow

Blue

Violet

Red

Alkyle halides can be prepared by treating halogen acids with

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Ethane

Ethanol

Ethene and ethanol

Aldehyde

In incinerating the waste is burnt at

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1000°C

100°C

2000°C

1500°C

The osmotic pressure of 1 m solution at 27°C is

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2.46 atm

24.6 atm

1.21 atm

12.1 atm

Potassium ferrocyanide is a

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Mixed salt

Double salt

Complex salt

Normal salt

The number of atoms present in molecule determines its:

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Molecularity

Atomicity

Basicity

Acidity

Common names of aldehydes are given by corresponding:

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Ketone

Alcohol

Carboxylic acid

ester

The next homologue of C₁₀H₂₂will be

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C₉H₂₀

C₁₂H₂₆

C₁₁H₂₄

C₁₃H₂₈

Ascorbic acid is a chemical name of

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Vitamin D

Vitamin A

Vitamin C

Vitamin B₆

ph of the buffer CH₃COOh + CH₃COONa is 3.76. If the mixture contains 1 molar acetic acid and 0.1 molar sodium acetate, then pKa of this buffer is

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3.76

4.76

5.76

6.76

Rate law of an equation is obtained :

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From a balance equation.

Can be calculated theoretically as well as determined experimentally.

It is only calculated theoretically.

Experimentally.

Burning of fossil fuels is the main source of pollution

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Nitrogen oxide

Nitric oxide

Nitrous oxide

Sulphur dioxide

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