Oxidation of Alkenes

Q.

The products obtained when 2 - methyl propene is oxidized with acidic potassium permanganate is

1. CH₃COOH, H - CHO

2. CH₃COOH, H₂O_, CO₂

3. (CH₃)₂C = O, H - CHO

4. (CH₃)₂C = O, H₂O, CO₂

Q. An alkene on ozonolysis gives methanal as one of the products. Its sturcture is:

1. 
2. 
3. 
4. 

Q.

How can you not distinguish between vicinal and geminal dihalides?

Q. When both $N$ and $S$ are present in an organic compound, the sodium extract with $FeC{l}_3$ gives:

1. Green colour
2. Blue colour
3. Yellow colour
4. Blood red colour

Q.

Does Benzene decolourise bromine water?

Q. Balance the following equation:
g) $PbS+O_2\to PbO+S{O}_2$

Q. Among the following sets of reactants which one produces anisole?

1. $C{H}_{3}CHO;RMgX$
2. $C_6{H}_{5}OH;NaOH;C{H}_{3}I$
3. $C_6{H}_{5}OH;\text{neutral}FeC{l}_3$
4. $C_6{H}_5-C{H}_3;C{H}_{3}COCl;AlC{l}_3$

Q.

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}(\mathrm{alkaline}{\mathrm{KMnO}}_4+\mathrm{Heat})\to {\mathrm{CH}}_3\mathrm{COOH}$ In the above-given reaction, alkaline KMnO4 acts as:

1. Reducing agent

2. Oxidizing agent

3. Catalyst

4. Dehydrating agent

Q.

When ${\mathrm{F}}_2$ reacts with ${\mathrm{H}}_2\mathrm{S}$, Sulphurs product $\left(\mathrm{x}\right)$ is formed.

1. ${\mathrm{SF}}_2$

2. ${\mathrm{SF}}_4$

3. ${\mathrm{SF}}_6$

4. ${\mathrm{OF}}_2$

Q.

Ozonolysis of alkenes gives ozonide which gives aldehydes and/or ketones. When a stream of $O_3$ is passed through a solution of alkene in an inert solvent at low temperature the molecule adds up to form ozonide. This ozonide is unstable and easily decompose either by reduction or hydrolysis and forms compound having. This$>C=O$ is known as ozonolysis.

Product P is

1. 

2. 

3. 

4. 

Q. Glucose reacts with bromine water to produce

1. glyceraldehyde
2. gluconic acid
3. saccharic acid
4. glucaric acid

Q.

Which of the following compounds has the same hybridisation for all the Carbon atoms ?

1. $C{H}_3-C{H}_2-CHO$

2. 

3. 

4. $C{H}_2=CH-CN$

Q. Isopropyl alcohol is obtained by reacting which of the following alkenes with conc.$H_{2}S{O}_{4}and{H}_{2}O$

1. 2-methyl propene
2. Isoprene
3. Ethylene
4. Propylene

Q. Which of the following organic compounds will give white precipitate with $AgN{O}_3?$

1. $C_6{H}_{5}NH{{}_3}^{+}C{l}^{-}$
2. NaCl
3. 2, 4, 6-trinitrochlorobenzene
4. Benzyl chloride

Q.

Write the steps involved in the process of conversion from ethanoic acid to benzene.

Q. The disappearance of the characteristic purple colour of $KMn{O}_4$ in its reaction with an alkene is the test for unsaturation. It is known as

1. Markownikoff's test
2. Baeyer's test
3. Wurtz's test
4. Grignard test

Q. Which of the following has greatest reducing power

1. HCl
2. HF
3. HBr
4. HI

Q.

Give the chemical equation for the industrial preparation of methanol from water gas

Q. The disappearance of the characteristic purple colour of $KMn{O}_4$ in its reaction with an alkene is the test for unsaturation. It is known as

1. Baeyer's test
2. Wurtz's test
3. Grignard test
4. Markownikoff's test

Q. Match List-I with List-II

List-I (Chemical reaction)	List-II (Reagent used)
(a)$C{H}_{3}COOC{H}_{2}C{H}_3\to C{H}_{3}C{H}_{2}OH$	(i)$C{H}_{3}MgBr/H_3{O}^{+}$ (1 equivalent)
(b) $C{H}_{3}COOHC{H}_3\to C{H}_{3}CHO$	(ii)$H_{2}S{O}_4/H_{2}O$
(c) $C{H}_{3}C\equiv N\to C{H}_{3}CHO$	(iii)$DIBAL-H/H_{2}O$
(d) $C{H}_{3}C\equiv N\to C{H}_{3}COC{H}_3$	(iv) $SnC{l}_2,HCl/H_{2}O$

Choose the most appropriate match.

1. $\left(a\right)-\left(iii\right),\left(b\right)-\left(ii\right),\left(c\right)-\left(i\right),\left(d\right)-\left(iv\right)$
2. $\left(a\right)-\left(iv\right),\left(b\right)-\left(ii\right),\left(c\right)-\left(iii\right),\left(d\right)-\left(i\right)$
3. $\left(a\right)-\left(ii\right),\left(b\right)-\left(iv\right),\left(c\right)-\left(iii\right),\left(d\right)-\left(i\right)$
4. $\left(a\right)-\left(ii\right),\left(b\right)-\left(iii\right),\left(c\right)-\left(iv\right),\left(d\right)-\left(i\right)$

Q. Which of the following alkenes gives only acetic acid on oxidation with potassium permanganate solution

1. Ethylene
2. 1-Butene
3. Propene
4. 2-Butene

Q. Cyclopentene on treatment with alkaline $KMn{O}_4$ gives

1. Cyclopentanol
2. trans 1, 2-cyclopentanediol
3. cis 1, 2-cyclopentanediol
4. 1 : 1 mixture of cis and trans 1, 2-cyclopentanediol

Q.

What is the difference between Hofmann and Curtiuss Rearrangement?

Q. In which of the following reaction ketone is formed?

1. $C{H}_3-C{H}_2-OH\stackrel{KMn{O}_4/H^{+}}{\to }$
2. $C{H}_3-C{H}_2-OH\stackrel{Cu/\Delta }{\to }$
3. 
4. 

Q. in the reaction C6H5CHO + (CH3CO)2O→ A Then product A is if the reaction takes place in the presence of CH3COONa (a)acetaldehyde (b)cinnamic acid (c)β-naphthol (d)ethylene oxid

Q. Select the correct Baeyer-Villiger oxidation reaction :

1. 
2. 
3. 
4. 

Q. What is the major product expected from the following reaction?

1. 
2. 
3. 
4. 

Q. What is analysis reaction?

Q.

Nitric acid (${\mathrm{HNO}}_3$) acts only as an oxidizing agent while nitrous acid (${\mathrm{HNO}}_2$) acts both as an oxidizing as well as reducing agent. Explain.

Q. Baeyer's reagent is used in the laboratory for

1. Reduction
2. Oxidation
3. Detection of double bonds
4. Detection of glucose