The decreasing order of nucleophilicity among the given nucleophiles is:

(A)		(B)
(C)		(D)

1. (C), (B), (A), (D)
2. (B), (C), (A), (D)
3. (D), (C), (B), (A)
4. (A), (B), (C), (D)

The increasing order of stability of the following free radicals is:

The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess acid required 20 mL of 0.5 M sodium hydroxide solution for complete neutralization. The percentage of nitrogen in the organic compound is:
1. 46.6 %
2. 50.4 %
3. 42.8 %
4. 40.5 %

The IUPAC name of the following compound is:

1. 3, 3-Dimethyl-1-hydroxycyclohexane

2. 1,1-Dimethyl-3-hydroxycyclohexane

3. 3,3-Dimethyl-1-cyclohexanol

4. 1,1-Dimethyl-3-cyclohexanol

The compound that does not have sp² hybridized carbon among the following is:

1. Acetone

2. Acetic acid

3. Acetonitrile

4. Acetamide

In a given organic compound of molar mass
108 g mol^-1 , C, H, and N atoms are present in a 9: 1: 3.5  by weight ratio.
The molecular formula of the organic compound is:

1. C₆H₈N₂ 

2. C₇H₁₀N 

3. C₅H₆N₃ 

4. C₄H₁₈N₃

Choose the compound with incorrect IUPAC nomenclature among the following.

1.		Ethylbutanoate
2.		3-Methylbutanal
3.		2-Methyl-3-pentanone
4.		2-Methyl-3-butanol

Given the following benzyl/allyl system:

1. (CH₃)₃C- > (CH₃)₂CH- > CH₃CH₂-
2. CH₃CH₂- >(CH₃)₂CH- > (CH₃)₃C-
3. (CH₃)₂CH- > CH₃CH₂- > (CH₃)₃C-
4. (CH₃)₃C- > CH₃CH₂- > (CH₃)₂CH-

What properties do free radicals exhibit due to their unpaired electron?

1. Cations

2. Anions

3. Chemically non-reactive

4. Chemically reactive

Following types of compounds (as I, II) are studied in terms of isomerism in: 

(I)	CH3CH=CHCH3
(II)

1. Chain isomerism 
2. Position isomerism 
3. Conformers 
4. Stereisomerism