Question # 1

Fluorine is largely used in

Choose an answer

rocket fuels

making Teflon

making freon

All

Ricket is caused due to the deficiency of vitamin

Choose an answer

A

D

B

E

The pH range of acid rain is?

Choose an answer

7-6.5

6.5-6

6-5.6

Less than 5

Plastic, rubber, synthetic fibers belong to macromolecules:

Choose an answer

Inorganic

organic

Biopolymer

synthetic

Molar mass of repeating unit of PVC monomer is:

Choose an answer

43

53

63

73

When light is exposed to transtion element, then electrons jump from lower orbitals to higher orbitals in

Choose an answer

Orbitals of s-subshell

Orbitals of d-subshell

Orbitals of p-subshell

between different shells

Which of the following substance has maximum critical temperature

Choose an answer

H₂O

N₂

SO₂

Ne

When equal proportion of DH3_ l and C2H5 ___ l are treated with Na metal in preasence4 of dry ether, the number of possible hydrocarbons obtained will be:

Choose an answer

5

4

3

2

The molecules of CO2, in dry ice form the

Choose an answer

covalent crystals

molecular crystals

none of these crystals

ionic crystals

Which of the following statements is not correct about galvanic cell?

Choose an answer

Anode is negatively charged

Cathode is positively charged

Reduction occurs at anode

Reduction occurs at cathode

H₂O is liquid at room temperature whereas H₂S is a gas because

Choose an answer

H₂O used as drinking water, but H₂S has rotten egg smell

H₂O is neutral. H₂S is a weak acid

stronger hydrogen bonding in H₂O than in H₂S

H₂O occurs abundantly than H₂S

The term ebullioscopy is used for

Choose an answer

Depression of freezing point

Elevation in boiling point

Lower of vapour pressure

None of the above

Sulphuric acid generates nitronium ion by reacting with

Choose an answer

Nitric acid

Nitrogen gas

Nitrous acid

Potassium nitrate

On heating glycerol with conc. Sulphuric acid a compound with unpleasant odour is obtained. The compound is

Choose an answer

Methyl alcohol

Formic acid

Prop-2-enal

Glycerol sulphate

Methyl alcohol is not used

Choose an answer

As a solvent

A an anti-freezing agent

As a substitute for petrol

For denaturing of ethyl alcohol

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

Choose an answer

Hund's rule

Markowvikov's rule

Pauli's exclusion principle

Auf ban principle

Physical properties of alkanes increase with increase of all physical constants except

Choose an answer

Boiling points

Melting points

Density

Solubility

What is the most common catalyst used in hydrogenation of oils

Choose an answer

Cobalt

Nickel

Tungsten

Copper

A compound R has all of the following properties. It is neutral; It gives an orange precipitate with 2,4-dinitrophenythydrazine; it evolves hydrogen chloride when treated with PCI₅in the cold What could R be

Choose an answer

Basicity of orthoposphoric acid is

Choose an answer

2

3

4

5

Which of the following is not a fertilizer

Choose an answer

Nitrophos

Dolomite

Super phosphate of lime

Urea

Which orbital is in the process of completion in case of transition elements

Choose an answer

p-orbital

f-orbital

d-orbital

s-orbital

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