Question # 1

The density of nitrogen gas prepared from air is slightly greater than that of nitrogen prepare by a chemical reaction form a compound of nitrogen due to the presence of the following in aerial nitrogen.

Choose an answer

Argon

CO₂

Some nitrogen molecules analogous to O2

Greater amount of nitrogen molecules derived from N¹⁵isotope.

Which of the following elements is most electronegative?

Choose an answer

Oxygen

Chlorine

Nitrogen

Fuorine

Acetic anhydride is obtained from acetyl chloride by the reaction of

Choose an answer

P₂O₅

H₂SO₄

CH₃COONa

CH₃COCH₃

Magnesium keeps on burning in

Choose an answer

N₂

CO₂

N₂O

N₂as well as CO₂

All the naturally occurring processes proceed spontaneously in a direction which lead to

Choose an answer

Decrease of entropy

Increase of enthalpy

Increase of free energy

Decrease of free energy

Which of the following alkali metal hydroxides is the strongest base?

Choose an answer

LiOH

NaOH

KOH

CsOH

The rate of reaction between A and B increases by a factor of 100, and when the concentration with respect to A is increased 10 folds, the order of reaction w.r.t. A is

Choose an answer

10

1

4

2

The pore size of filter paper depends upon

Choose an answer

Nature of the medium

Temperature of the medium

Size of particles

Mass of the particles

The formula to calcium cyanamide is

Choose an answer

Ca(CN)₂

CaC_2N

CaNCN

CaCHNH₂

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

Choose an answer

1-Propanol

2-Propanol

2-Methyl2-Proponal

Ethanol.

BiCl₃on hydrolysis forms a white precipitate of

Choose an answer

Bismuthio acid

Bismuth oxychloride

Bismuth pentachloride

Bismuth hydroxide.

Saturated solution of NaCl on heating becomes

Choose an answer

Super saturated

Unsaturated

Remains saturated

None

The rotation of two carbon atoms joined by double bond would happened only if

Choose an answer

P_ibond is broken

Sigma bond is broken

Both bonds are broken

None of above

Sea weeds are important source of

Choose an answer

Iron

Chlorine

Iodine

Bromine

Which one of the halogen acid is a liquid?

Choose an answer

HF

HCl

HBr

Hl

The essential component of organic compound is

Choose an answer

O

C

P

N

More Classes

Other Links

NAT II Physical Science Chemistry 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