Chemistry : Organic Chemistry – Some Basic Principles and Techniques

In Dumas method, 0.3 g of an organic compound gave 45 mL of nitrogen at STP. The percentage of nitrogen is

• 16.9

• 18.7

• 23.2

• 29.6

The IUPAC name of the following compound is-

(CH₃)₂CH-CH=CH-CH=CH(C₂H₅)-CH₃

• 2, 7-dimethyl-3, 5-nonadiene

• 2, 7-dimethyl-2-ethylheptadene

• 2-methyl-7-ethyl-3, 5-octadiene

• 1, 1-dimethyl-6-ethyl-2, 4-heptadiene

Identify the correct statements from the following
(i) Electromeric effect is a permanent effect

(ii) Hyper conjugation is a temporary effect

(iii) Fractional distillation is used to separate two liquids from a mixture if the difference in their boiling points is less

(iv) Different compounds are adsorbed on an adsorbent different extents

• ii, iii, iv

• i, ii, iii

• ii, iv

• iii, iv

Ferric ion forms a Prussian blue coloured precipitate due to formation of

• K₄[Fe(CN)₆]

• Fe₄[Fe(CN)₆]₃

• Fe(CNS)₃

• K₃[Fe(CN)₆]

Which of the following will show geometrical isomerism?

• 1-butene

• 2-butene

• 2-methyl propene

• Propene

n-propyl alcohol and iso-propyl alcohol are examples of

• position isomerism

• chain isomerism

• tautomerism

• geometrical isomerism

Optical isomerism is shown by

• butanol-1

• butanol-2

• butene-1

• butene-2

The IUPAC name of the following compound is:

• 7 [β-methyl butyl]; 9 butyl tridecane

• 3 [β-ethyl butyl]; 9 ethyl tridecane

• 2 [β-ethyl ethenyl]; 8 propyl decane

• None of the above

Total number of isomers of C₄H₁₀O is

• 7

• 4

• 3

• 8

IUPAC name of [Pt(NH₃)₂Cl₂] is

• diamine dichloro platinum (II)

• amine, chloro platinum (III)

• chloro diamine platinum (II)

• None of the above