Chlorination

Q. Give scientific reason
The hydrogenation of vegetable oil in the presence of nickel catalyst forms vanaspati ghee.

Q. Chlorination of alkanes is a/an reaction.

1. addition
2. elimination
3. substitution

Q.

An organic compound burns with a sooty flame. Is it saturated or an unsaturated compound?

Q.

Suggest a method to purify impure sample of potash alum.

Q.

Under what conditions does ethane get converted to :
(a) ethyl alcohol, (b) acetaldehyde,
(c) acetic acid.

Q.

Give the formula and names of A, B, C and D in the following equations:
(a) $C{H}_4\underset{-HCl}{\overset{C{l}_2}{\to }}A\underset{-HCl}{\overset{C{l}_2}{\to }}B\underset{-HCl}{\overset{C{l}_2}{\to }}C\underset{-HCl}{\overset{C{l}_2}{\to }}D$
(b) $C_2{H}_2\stackrel{H_2}{\to }A\stackrel{H_2}{\to }B\underset{-HBr}{\overset{B{r}_2}{\to }}C\underset{-HBr}{\overset{B{r}_2}{\to }}D$
(c)$C_2{H}_4+B\underset{Ni}{\overset{{200}^{\circ }C}{\to }}{C}_2{H}_6$

Q.

Chlorination of alkanes is an elimination reaction.

1. True

2. False

Q. (c) Name the addition product formed between ethene and water.

Q.

Saturated carbon compounds undergo addition reactions in the presence of sunlight.

1. True

2. False

Q. Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid $\text{HCl}$ is added to test tube A, while acetic acid $\left({\text{CH}}_3\text{COOH}\right)$ is added to test tube B. In which test tube will the fizzing occur more vigorously and why?

Q. Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid $\text{HCl}$ is added to test tube A, while acetic acid $\left({\text{CH}}_3\text{COOH}\right)$ is added to test tube B. In which test tube will the fizzing occur more vigorously and why?

Q.

Condition for maximum yield of $C_2{H}_{5}Cl$ is

1. $C_2{H}_6\left(excess\right)+C{l}_2\stackrel{U.V.Light}{\to }$

2. $C_2{H}_6+C{l}_2\underset{Roomtemp.}{\overset{Dark}{\to }}$

3. $C_2{H}_6+C{l}_2\left(excess\right)\stackrel{UVLight}{\to }$

4. $C_2{H}_6+C{l}_2\stackrel{UV.Light}{\to }$

Q. Cant we say methyl ethanoate as propanoate ?

Q.

Saturated carbon compounds undergo addition reactions in the presence of sunlight.

1. True

2. False

Q.

How will you bring about the following conversions:

Ethanol To But-1-yne

Q. what happend when acid react with base

Q. why potassium have valence of 3 and 5 bot

Q. Some non-metals are used in water purification.

1. True
2. False

Q. $X+2Zn\stackrel{Alcohol}{\to }H-C\equiv C-H$

1. 1, 1-Dibromoethane
2. 1, 2-Dibromoethane
3. 1, 1, 2, 2-Tetrachloroethane
4. Dibromo ethane

Q. A pungent odour is obtained when methane reacts with ___ in the presence of sunlight.

1. $C{l}_2$
2. HCl
3. $H_2$
4. $H_{2}O$