The number of isomeric hexanes is:

• 5

• 2

• 3

• 4

The two optical isomers given below, namely are:

• enantiomers

• geometrical isomers

• diastereomers

• structural isomers

23.

Which of the following statement is wrong ?

• Using Lassaigne's test nitrogen and sulphur present in organic compound can be tested

• Using Beilstein's test the presence of halogen in a compound can be tested.

• In Lassaigne's filtrate the nitrogen present in a organic compound is converted into NaCN

• In the estimation of carbon, an organic compound is heated with CaO in a combustion tube

Cis-trans isomers generally :

• contain an asymmetric carbon atom

• contain double bonded carbon atoms

• rotate the plane of polarized light

• are enantiomorphs

The following reaction represent,

C₁₂H₂₆ → C₆H₁₂ + C₆H₁₄

• substitution

• synthesis

• cracking

• polymerization

Hydrogen peroxide when added to a solution of potassium permanganate acidified with sulphuric acid:

• forms water only

• acts as an oxidizing agent

• acts as a reducing agent

• produces hydrogen

The equilibrium molecular structure of hydrogen peroxide is :

• Planar as given below

  

• linear

• tetrahedral

• non-planar

Alkali metals have high oxidation potential and hence, they behave as :

• oxidizing agents

• Lewis bases

• reducing agents

• electrolytes

Which of the following 1 : 1 mixture will act as buffer solution ?

• HCl and NaOH

• CH₃COOH and CH₃COONa

• KOH and CH₃COOH

• CH₃COOH and NaCl

What is potential of platinum wire dipped into a solution of 0.1 M in Sn²⁺ and 0.01 M in Sn⁴⁺ ?

• E°

• E° + 0.059

• E° + $\frac{0.059}{2}$

• E° - 0.059