Question # 1

Value of gas constant R is

Choose an answer

8.314 J K^-1mol^-1

0.082 J K^-1mol^-1

273.15 J K^-1mol^-1

101325 J K^-1mol^-1

Why is carbon monoxide called as pollutant? The reason is that

Choose an answer

It combines with oxygen

It combines with haemoglobin

It inactivates glycolysis

It inactivates nerves

Substituted phenyl group are called

Choose an answer

Arene groups

Alkyl groups

Aryl groups

Acyl groups

Raffinose is a trisacharirde composed of monosaccharide is

Choose an answer

Glucose

Glactose

Fructose

All

Which of the following tends to approach ideal gas like behavior at R.T.P

Choose an answer

ammonia

neon

carbon dioxide

chlorine

one gram of carbohydrate yields energy:

Choose an answer

10kcal

100kcal

4kcal

9kcal

Ozone is effectively removed by

Choose an answer

TNT

CFCs

PVC

CNG

Vegetable oils are:

Choose an answer

Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Essential oils obtained from plants

By convention, the standard heat of formation of all elements is assumed to be

Choose an answer

Zero

positive

Negative

Infinity

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg Toxic.

Choose an answer

It attaches to sulphur of the disulphide link

Hg is a heavy metal

Hg is liquid at room temperature

Hg is non reactive chemically

Which pair of transition elements shows abnormal electronic configuration?

Choose an answer

Sc and Zn

Cu and Sc

Zn and Cu

Cu and Cr

Potable water is considered to be

Choose an answer

Safe for human consumption

Not safe for human consumption

The surface water

The ground water

The common name of propanoic acid is

Choose an answer

Acetic acid

Formic acid

Propionic acid

Butyric acid

The polymers which can be re-softened again and again are caled

Choose an answer

Thermoplastic

Thermosetting

Both a and b

None

The boiling points of alcohols are higher than the corresponding alkanes, This is because

Choose an answer

Of hydrogen bonding existing between molecules of alcohols

Alkanes are dipolar compounds

Alcohols are sweet in taste

Alcohols are soluble in water

Replacement of hydrogen atom by - SO₃H group in benzene is called

Choose an answer

Nitration

Alkylation

Sulphonation

Acylation

Acetamide is

Choose an answer

Highly acidic

Highly basic

Neutral

amphoteric

Hydrolysis of potassium acetate produces

Choose an answer

Acidic solution

Neutral solution

Basic solution

None of these

Relative atomic mass of an element is the mass of the element relative to

Choose an answer

1/12 mass of carbon-12

1/12 mass of carbon

1 mass of hydrogen atom

1/16 mass of oxygen

De halogenatiion of tetrahalides happens in the presence of active metal like

Choose an answer

Zn

Mg

Both a and b

None of them

Hydrolysis of alkyl nitriles is done to get carboxylic acids in the presence of

Choose an answer

Mineral acids

Mineral alkalies

Organics acids

Minerals acids & alkalies

Hybridization in alkanes is:

Choose an answer

sp

sp²

sp³

dsp²

More Classes

Other Links

Chemistry General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer