Preparation of Dioles

Q. Ethylene reacts with S2Cl2 to give

Q.

Coconut oil upon alkaline hydrolysis gives[MP PET 1991; AFMC 2000; KCET 2001; BCECE 2005]

1. Glycerol

2. Ethylene oxide

3. Glycol

4. Alcohol

Q.

Ethylamine can be obtained by the

[CPMT 1985]

1. Action of on ethyl iodide

2. None of the above

3. Both (a) and (b)

4. Action of on ethyl alcohol

Q. The hydrated salt Na2CO3.xH2O undergo 63percentage loss in mass on heating and becomes anhydrous the valve of x is

Q.
Compound A formed during the course of above reaction is:

1. 
2. 
3. 
4. 

Q. Electrochemical equivalent is the amount of metal deposited when __________ coulombs of electricity is passed.

1. $0.0011181$
2. $96500$
3. $1118.81$
4. $1$

Q. The insecticide chlordane is warmed with dilute $NaOH$ solution for some time. The expected product would be:

1. 
2. 
3. 
4. 

Q.

Coconut oil upon alkaline hydrolysis gives[MP PET 1991; AFMC 2000; KCET 2001; BCECE 2005]

1. Glycol

2. Alcohol

3. Glycerol

4. Ethylene oxide

Q. 19. 3-methyl pent2ene -{O3/H2O-Zn}->A+B. When the mixture of A and B is treated with dil.NaOH how many aldols can be formed?

Q. Name the temperature above which the formation of micelles takes place.

Q. Which of the following sequences of rate of alkaline hydrolysis of esters is correct :

1. $C{H}_{3}C{H}_{2}COOC{H}_3<(C{H}_3{)}_{2}CHCOOC{H}_3<(C{H}_3{)}_{3}CCOOC{H}_3$
2. $C{H}_{3}C{H}_{2}COOC{H}_3>(C{H}_3{)}_{2}CHCOOC{H}_3>(C{H}_3{)}_{3}CCOOC{H}_3$
3. $C{H}_{3}C{H}_{2}COOC{H}_3>(C{H}_3{)}_{2}CHCOOC{H}_3<(C{H}_3{)}_{3}CCOOC{H}_3$
4. $C{H}_{3}C{H}_{2}COOC{H}_3<(C{H}_3{)}_{2}CHCOOC{H}_3>(C{H}_3{)}_{3}CCOOC{H}_3$

Q. what is the function of grignard reagent ?

Q. Which statement is wrong about the hydrolysis of $R-\stackrel{\oplus }{N}\equiv \stackrel{\ominus }{C}$?

1. Isocyanides are hydrolysed with aqueous dilute acids but not by alkali
2. In the hydrolysis of $(R-\stackrel{\oplus }{N}\equiv \stackrel{\ominus }{C})$, first electrophile $\left(H^{\oplus }\right)$ adds on the C atom and then nucleophile $\left(\stackrel{\ominus }{OH}\right)$ adds to the same C atom
3. On partial hydrolysis, $\left(RNC\right)$ gives N-substituted methanamide or formamide
4. On complete hydrolysis $\left(RNC\right)$ gives $1^o$ amine and $RCOOH$.

Q.

Ethylene reacts with Baeyer's reagent to give [CPMT 1988]

1. Ethane

2. Ethyl alcohol

3. Ethylene glycol

4. None of these

Q. The products of acid hydrolysis of $P$ and $Q$ can be distinguished by :

1. $2,4$-DNP
2. Lucas reagent
3. Fehling solution
4. $NaHC{O}_3$

Q. Suggest the reagents for the following conversion.

1. Hg(OAc)₂, H₂O, NaBH₄

2. H₂O/$H^{+}$

3. Grignard reagent

4. B₂H₆/ether, H₂O, H₂O₂/OH^-