Question # 1

Water is considered pollutant when value of Do is

Choose an answer

6 PPM

8 PPM

03 PPM

10 PPM

Which of the following statement about ribose is incorrect

Choose an answer

Poly hydroxyl compound

It is an aldo sugar

Contain six carbon atoms

It exhibit optical activity

Which of the following protein has application is food industry

Choose an answer

Globulin

Gelatin

Casein

All

Boiling point of water is higher (100°C) than that of ethanol (78.5°C) although both have hydrogen bonding. This is because

Choose an answer

water molecules are closely packed

water is more acidic than ethanol

ethanol is an organic liquid

number of hydrogen bonds are more in H₂O

A certain buffer solution contains equal cone. of X- and HX. Ka for HX is 10(-8). The pH of buffer is

Choose an answer

3

11

8

14

Cotton is __________ % cellulose

Choose an answer

90

100

99

30

If 250 cm³of hydrogen gas is cooled from 127°C to -73°C at constant pressure then new volume of gas is ______ dm³

Choose an answer

0.25

0.375

0.125

0.0625

The semi solid wastes in landfills is called:

Choose an answer

Landfill

effluents

Leachate

Incineration

What can be deduce about two gases which have the same molecular mass:

Choose an answer

They have same numbers of atoms in a molecule

They have same rate of diffusion

They have same boiling points

They have equal solubility in water at room temprature

Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by

Choose an answer

schrodixger

standinger

Lewsi

newton

Dehydrohalogenation of secondary butyI bromide will give

Choose an answer

Propene

1-Butene

Butene

2-Butene

4-d series is in the period:

Choose an answer

4th

5th

6th

7th

The nature of interparticle forces in benzene is

Choose an answer

Dipole-dipole interaction

Dispersion force

Ion-dipole interaction

H-bonding

Glutamic acid, aspartic acid are ______ amino acid

Choose an answer

Acidic

Basic

Neutral

None of these

Pro stand for

Choose an answer

Valine

Alamine

Glycine

Proline

Coordination sphere may be:

Choose an answer

Cationic

Anionic

Neutral

All above

The amount of energy required to remove an electron from an atom of an element in the gaseous state is called

Choose an answer

Electron affinity

Electronegatively

Ionization energy

None of these

For a 3P subshell the set of principle and azimuthal quantum number is

Choose an answer

n = 1 , l = 2

n = 3, l = 0

n = 3, l = 1

n = 1, l = 3

The mass of Al₂S₃formed when 20 grams Al reacts completely with S is

Choose an answer

60 g

50 g

50.55 g

55.55 g

What is wrong about transition metals?

Choose an answer

Diamagnetic

Paramagnetic

Form complexes

Shows variable oxidation state

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M₂O₃become

Choose an answer

Stronger reducing agents

More ionic

More basic

More volatile

The decrease in radius in large for:

Choose an answer

Monovalent ions.

Trivalent ions.

Divalent ions.

Atoms.

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