What is the n factor or valancy factor of ozone during the change 2O_3? → 3O₂??

1) 2
2) 4
3) 6
4) 8

Which of the following is correct order of cyrstal field splitting.

1) C-donor >  N-donor > O-donor
2) N-donor >  O-donor >  C-donor
3) C-donor >  O-donor >  N-donor
4) O-donor >  N-donor >  C-donor

$$[Cr(H_2O)_6]Cl_3$$ (At. no. of cr = 24) has moment of 3.83 B.M. The correct distribution of 3d electrons in the chromium present in the complex is:
1) $$3d^1_{xy},3d^1_{yz},3d^1_{zx}$$
2) $$3d^1_{xy},3d^1_{yz},3d^1_{z^2}$$
3) $$3d^1_{(x^2-y^2)},3d^1_{z^2},3d^1_{xz}$$
4) $$3d^1_{xz},3d^1_{(x^2-y^2)},3d^1_{yz}$$

What is the monomer of polypeptide ?

 1) Glucose
2) amino acid
3) nucleotide
4) nucleoside

Amines behave as :

1) Lewis acids
2) Lewis bases
3) Amphoteric compounds
4) Neutral compounds

A reagent used to test the presence of Fe⁺² ion is :

1) NH₄CNS
2) H₂S
3) K₃Fe(CN)₆
4) K₄Fe(CN)₆.

The final product of the oxidation of ethyl alcohol is :

1) Acetic acid
2) Ethane
3) Acetaldehyde
4) Acetone.

An aqueous solution of colourless metal sulphate M gives a white precipitate with NH₄OH. This was soluble in excess of NH₄OH. On passing H₂S through this solution a white precipitate is formed. The metal in metal salt is

 1. aluminum
 2. calcium
 3. barium
 4. zinc

Which of the following compounds shall not produced propene by reaction with HBr followed by elimination of direct only elimination reaction ?

1) H₂C=C=O
2) 
3)
4)

Equal masses of ethane and hydrogen are mixed in an empty container at 25°C. The fraction of total pressure exerted by hydrogen is

1) 1 : 2
2) 1 : 1
3) 1 : 16
4) 15 : 16