Draw the structures of the following compounds. (ii) p-Nitropropiophenone
2.
Give simple chemical tests to distinguish between the following pairs of compounds. (iii) Phenol and Benzoic acid
3.
An organic compound contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollens’ reagent but forms an addition compound with sodium hydrogensulphite and give positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acid. Write the possible structure of the compound.
4.
How will you convert ethanal into the following compounds? (iii) But-2-enoic acid
5.
How will you bring about the following conversions in not more than two steps? (viii) Benzaldehyde to \(\alpha\)-Hydroxyphenylacetic acid
6.
What is meant by the following terms ? Give an example of the reaction in each case. (ii) Acetal
7.
An organic compound (A) (molecular formula \(C_{8}H_{16}O_{2}\)) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene. Write equations for the reactions involved.
8.
Which of the following compounds would undergo aldol condensation, which the Cannizzaro reaction and which neither? Write the structures of the expected products of aldol condensation and Cannizzaro reaction. (iii) Benzaldehyde
9.
What is meant by the following terms ? Give an example of the reaction in each case. (viii) Imine
10.
How will you bring about the following conversions in not more than two steps? (vii) Benzaldehyde to 3-Phenylpropan-1-ol
11.
Predict the products formed when cyclohexanecarbaldehyde reacts with following reagents. (ii) Tollens’ reagent
12.
Draw the structures of the following compounds. (iv) 4-Methylpent-3-en-2-one
13.
Give simple chemical tests to distinguish between the following pairs of compounds. (i) Propanal and Propanone
14.
Give plausible explanation for each of the following: (ii) There are two \(-NH_{2}\) groups in semicarbazide. However, only one is involved in the formation of semicarbazones.
15.
What is meant by the following terms ? Give an example of the reaction in each case. (ix) 2,4-DNP-derivative
16.
How will you bring about the following conversions in not more than two steps? (vi) Bromobenzene to 1-Phenylethanol
17.
Which of the following compounds would undergo aldol condensation, which the Cannizzaro reaction and which neither? Write the structures of the expected products of aldol condensation and Cannizzaro reaction. (viii) Butan-1-ol
18.
Predict the products formed when cyclohexanecarbaldehyde reacts with following reagents. (i) \(PhMgBr\) and then \(H_{3}O^{+}\)
19.
Give simple chemical tests to distinguish between the following pairs of compounds. (iv) Benzoic acid and Ethyl benzoate
20.
Arrange the following compounds in increasing order of their property as indicated: (iii) Benzoic acid, 4-Nitrobenzoic acid, 3,4-Dinitrobenzoic acid, 4-Methoxybenzoic acid (acid strength)
