Question # 1

Give IUPAC name fo Acetone

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Ethanal

Propanone

Butanone

Propanal

Alcohol can be prepared from Grignard's reagent with an aldehyde: If we start with formaldehyde the product alcohol with be

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Primary

Secondary

Territory

Aromatic

The unit of rate of reaction is

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mole dm^-3

mole Kg^-1

moles dm^-3sec^-1

grams dm^-3

The human body can synthesize ______ amino acids

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1

10

20

19

In electronic watches or electronic calculators the tiny batteries used are

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Alkaline battery

NICAD battery

Fuel cell

Silver oxide battery

Which of the following is not the reactions of lithium

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Isotonic solutions have same

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Molar concentration

Molality

Normality

None of these

Ethyl alcohol on oxidation with K₂Cr₂O₇gives

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Acetic acid

Acetaldehyde

Formaldehyde

Formic acid

Which causes water pollution?

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Smoke/fly ash

Automobile exhausts

Aeroplnes

2,4-D and pesticides

Series starting from57La,42Hf -80Hg is in the period:

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4th

5th

6th

7th

Which is in differnet phase form other metals

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Ni

Hg

Cd

Na

Which one of the following has discontinuous solubility curve

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CaCI₂6H₂O

NaCI

KCI

NaNO₃

Which one of the following is not an example of chain growth polymer?

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Neoprene

Bunna-S

PMMA

Glyptal

What is wrong about transition metals?

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Diamagnetic

Paramagnetic

Form complexes

Shows variable oxidation state

Which one of the following statements is true about discovery of neutrons?

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These particles were formed by the bombardment of Alpha-particles on Beryllium.

These particles are formed by the spiting of alpha-particles.

These particles were discovered by natural radioactivity.

None of above.

Which gasses are produced from landfills

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NH₃

H₂S

N₂

All of these

The percentage of nitrogen in ammonium nitrate is

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32 - 33.5%

34 - 36%

40 - 45%

None of these

Which one is not a pollutant normally?

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Hydrocarbons

Carbon dioxide

Carbon monoxide

Sulphur dioxide

Phenol gives ---------- Colour with neutral FeCl₃solution

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Violet

Green

Red

Blue

During reaction of O₂and alkenes, a product:

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Glycol

Epxide

Halohydrin

Ethylene glycol

Dust particles in smoke is a solution of the type

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Liquid is solute and solid is solvent

Solid is solute and liquid is solvent

Solid is solute and gas is solvent

Gas is solute and solid is solvent

Palmitic acid & steanic acid ae obtained from process of fats & oils:

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Reduction

Neutralization

oxidation

hydrolysis

The bond order in No is 2.5 while that in NO⁺is 3.Which of the following statements is true for these two species?

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Bond length in NO⁺is greater than in NO

Bond length in unpredictable

Bond length in NO⁺is equal to that in NO

Bond length in NO is greater than in NO⁺

Variable valency is generally exhibited by

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Normal elements

Transition elements

Metallic elements

None of these

If four moles of sulpur dioxide are oxidised to sulphur trioxide, how many moles of oxygen molecules are required

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0.5

1.0

1.5

2.0

An organic acdi having molecular formula C₂H₄O₂is

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Formic acid

Acetic acid

Oxalic acid

Propionic acid

Substituted phenyl groups are called

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acyl groups

phenyl groups

Aryl groups

Alkyle groups

White P when boiled with strong solution of caustic soda produces

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Phosphine

Posh acid

Phosphorous acid

None

The heat contents of all the elements in their standard states are taken to be

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1

2

0

None

According to the SI-system heat contents are measured in units of

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Calorie

Joules

Ergs

Watts

Which halide among the following is used as methylating agent?

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CH₃l

C₂H₅Cl

C₂H₅Br

C₆H₅Cl

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