Question # 1

Empirical formula of monosaccharide is

Choose an answer

(CHO)_n

CH_nO_n+1

C_nH₂O

(CH₂O)_n

In which system hydrogen bonding is not present

Choose an answer

solution of ethanol in water

linking of helix in protein molecule

structure of ice

solution of NaCl in benzene

Condensation occurs between amino acids with the elimination of

Choose an answer

H₂O

H₂

O₂

NH₃

Insoluble ferric oxide is produced in the pH range:

Choose an answer

1 to 8

6 to 9

3 to 13

8 to 13

According to Boyle's law at constant temperature, the product of pressure and volume of a given mass of gas is:

Choose an answer

a constant

fraction

whole number

a multiple

A protein rich in proline and hydroxy proline is

Choose an answer

Globin

Collagen

Casein

Histone

All of the following substances are crystalline except:

Choose an answer

carbon

ice

plastic

sucrose

Which one the following is not postulated in the kinetic molecular theory of gases

Choose an answer

molecules of all the gases have same size and same mass

molecules are in chaotic motion

all molecular collisions are elastic

the volume of the molecules is negligible

The gas which obey's the gas laws at all conditions of temperature and pressure is called:

Choose an answer

Perfect gas

Super gas

Ideal gas

Real gas

Plastic toys are

Choose an answer

Copolymer

Thermoplastic polymer

Thermosetting polymer

Homopolymer

Two substances that have the same crystal structure are said to be

Choose an answer

isomorphous

anisotropic

isotropic

polymorphous

An organic compound 'X' on treatment with acidified K₂Cr₂O₇gives a compound 'Y' which reacts with I₂and sodium carbonate to form Triodomethane. The compound 'X' is

Choose an answer

CH₃OH

CH₃CHO

CH₃CH(OH)CH₃

CH₃COCH₃

What is the maximum mass of aluminium which can be obtained from 240g of aluminium oxide Al₂O₃?

Choose an answer

26 g

127 g

51 g

108 g

The best buffer is prepared when molar concentrations of the salt and acid are equal, then its pH and pKa value are related

Choose an answer

pH = pKa

pH < pKa

pH > pKa

pH x pKa = 14

Heavy water is obtained by

Choose an answer

Prolonged electrolysis of water

Dissolving heavy salt in water

Simple distillation of water

Removing impurities of calcium and magnesium form water

18 g glucose is dissolved in 90 g of water. The relative lowering vapor pressure is equal to :

Choose an answer

1/5

5.1

1/51

6

Choose an answer

Cu

H

N

O

Synthesis of rubber is made by polymerization of

Choose an answer

Chloroform

Acetylene

Divinylacetylene

Butene

Alcohols reacts with Grignard reagent to form

Choose an answer

Alkanes

Alkenes

Alkynes

All

The horizontal rows in the periodic table are called periods. The number of period are

Choose an answer

5

6

7

8

In the chemical combination of hydrogen and fluorine to form HF:

Choose an answer

Sodium atom donates major share of its electrons.

Hydrogen atom donates the major share of its electrons.

Both the atoms share the electrons equally.

None of above.

The development of industries was a direct result of which major factor

Choose an answer

Population

Living standards

Depletion of resources

All of these

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