The compound obtained by addition of water to an alkyne having more than two carbons, in the presence of \(\mathrm{HgSO_4 }\) and dilute \(\mathrm{H_2SO_4}\) at 333K, is:
1. | A vicinal diol | 2. | An aldehyde |
3. | An alcohol | 4. | A ketone |
An alkene on ozonolysis gives methanal as one of the products. Its structure is:
1. | 2. | ||
3. | 4. |
Which of the following is a free radical substitution reaction?
1. Benzene with Br2/AlCl3
2. Acetylene with HBr
3. Methane with Br2/hv
4. Propene with HBr/(C6H5COO)2
The alkane that gives only one monochloro product on chlorination with \(\text{Cl}_2\) in presence of diffused sunlight is-
1. | 2,2,-dimethylbutane | 2. | neopentane |
3. | n-pentane | 4. | Isopentane |
Hydrocarbon (A) reacts with bromine by substitution reaction to form an alkyl bromide B.
B undergoes the Wurtz reaction to give a gaseous hydrocarbon containing less than four carbon atoms.
The formula of (A) is:
1.
2.
3.
4.
The compound undergoes the following reactions
C
The product 'C' is-
1. m–Bromotoluene
2. o–Bromotoluene
3. 3–Bromo–2,4,6–trichlorotoluene
4. p–Bromotoluene
The correct order of acidity among the following is:
1. | \(\mathrm{CH \equiv CH > CH_3 - C \equiv CH }\) \(\mathrm{ > CH_2 = CH_2 > CH_3 - CH_3}\) |
2. | \(\mathrm{CH \equiv CH > CH_2 = CH_2 }\) \(\mathrm{ > CH_3 - C \equiv CH > CH_3 - CH_3}\) |
3. | \(\mathrm{CH_3 - CH_3 > CH_2 = CH_2 }\) \(\mathrm{ > CH_3 - C \equiv CH > CH \equiv CH }\) |
4. | \(\mathrm{ CH_2 = CH_2 > CH_3 - CH_3 }\) \(\mathrm{ > CH_3 - C \equiv CH > CH \equiv CH}\) |
The compound that will react most readily with gaseous bromine has the formula:
1. | \(\mathrm{C_3H_6}\) | 2. | \(\mathrm{C_2H_2}\) |
3. | \(\mathrm{C_4H_{10}}\) | 4. | \(\mathrm{C_2H_4}\) |