Reaction with Alkalis

Q.

Chlorine reacts with hot and concentrated NaOH and produces compounds (X) and (Y). Compound (X) gives a white precipitate with silver nitrate solution. The average bond order between Cl and O atoms in (Y) is?

Q. The compounds used as refrigerant are

1. $N{H}_3$
2. $CC{l}_4$
3. $C{F}_4$
4. $C{F}_{2}C{l}_2$

Q. A carbon compound A forms B with sodium metal and again A forms C with $PC{l}_5$, but B and C form diethyl ether. Therefore A, and B and C are:

1. $C_2{H}_{5}OH,C_2{H}_{5}ONa,C_2{H}_{5}Cl$
2. $C_2{H}_{5}Cl,C_2{H}_{5}ONa,C_2{H}_{5}OH$
3. $C_2{H}_{5}OH,C_2{H}_6,C_2{H}_{5}C{l}_2$
4. $C_2{H}_{5}OH,C_2{H}_{5}OCl,C_2{H}_{5}ONa$

Q.

Name a greenish yellow gas.

Q. The reaction that takes place when $C{l}_2$ gas is passed through conc. $NaOH$ solution is:

1. Displacement
2. Disproportionation
3. Oxidation
4. Reduction

Q.
The compound $E\left(g\right)$ is:

1. $CO$
2. $C{O}_2$
3. $C{H}_4$
4. $C_2{H}_2$

Q.

Q. Match the compounds/reactions in column I with their name of the structure in column II. Matching can be one or more than one.

Q.
Compound (A) and (B) are:-

1. $NaOCl,NaCl{O}_3$
2. $NaCl{O}_4,NaCl{O}_3$
3. $NaOC{l}_2,NaOCl$
4. $NaCl{O}_3,NaClO$

Q. Chlorine reacts with hot and conc. $NaOH$ and produces compounds (X) and (Y). Compound (X) gives white precipitate with $AgN{O}_3$ solution. The average bond order between $Cl$ and $O$ atoms in (Y) is

Q.
Compound (A) and (B) are:-

1. $NaCl{O}_3,NaClO$
2. $NaOC{l}_2,NaOCl$
3. $NaCl{O}_4,NaCl{O}_3$
4. $NaOCl,NaCl{O}_3$

Q. In the hydrogen peroxide molecule :

1. all the four atoms are in the same plane
2. two hydrogen atoms are connected to one of the oxygen
3. $O-H$ bonds are polar but molecule is non-polar
4. the four atoms are arranged in a non-linear and non-planar manner

Q. When an inorganic compound (X) having $3c-2e$ as well as $2c-2e$ bonds reacts with ammonia gas at a certain temperature, gives a compound (Y) iso-structural with benzene. Compound (X) with ammonia at a high temperature, produces a hard substance (Z). Then:

1. $\left(X\right)$ is $B_2{H}_6$
2. (Z) is known as inorganic graphite
3. (Z) having structure similar to graphite
4. (Z) having structure similar to (X)

Q. Chlorine reacts with hot and conc. $NaOH$ and produces compounds (X) and (Y). Compound (X) gives white precipitate with $AgN{O}_3$ solution. The average bond order between $Cl$ and $O$ atoms in (Y) is

Q. Chlorine reacts with hot and conc. $NaOH$ and produces compounds (X) and (Y). Compound (X) gives white precipitate with $AgN{O}_3$ solution. The average bond order between $Cl$ and $O$ atoms in (Y) is

Q. An element $X$ reacts with hydrogen, when heated to form a covalent hydride $H_{2}X$, if $H_{2}X$ has a smell of rotten eggs, the element $X$ is likely to be:

1. carbon
2. sulphur
3. chloride
4. phosphorus

Q. The presence of unsaturation in an organic compound can be tested with :

1. tollen's reagent
2. fehling solution
3. baeyer's reagent
4. schiff's reagent

Q. Which of the following alkyl halides will undergo $S_{N}1$ reaction most readily?

1. ${\left(C{H}_3\right)}_{3}C-F$
2. ${\left(C{H}_3\right)}_{3}C-Cl$
3. ${\left(C{H}_3\right)}_{3}C-Br$
4. ${\left(C{H}_3\right)}_{3}C-I$

Q. Give the best reaction sequence to prepare the above compound:

1. $\stackrel{HgS{O}_4,H_{2}S{O}_4}{\to }\underset{H_3{O}^{+}}{\overset{C{H}_{3}C{H}_{2}C{H}_{2}Li}{\to }}$
2. $\underset{ROOR}{\overset{BrH}{\to }}\stackrel{Li}{\to }\stackrel{Cul/C{H}_{3}C{H}_{2}C{H}_{2}l}{\to }$
3. $\underset{ROOR}{\overset{ClH}{\to }}\stackrel{Li}{\to }\stackrel{Cul/C{H}_{3}C{H}_{2}C{H}_{2}l}{\to }$
4. $\underset{C{H}_{3}C{H}_{2}C{H}_{2}Li}{\overset{\text{Dicyclohexylborane}}{\to }}\stackrel{H_3{O}^{+}}{\to }$

Q. White crystalline solid (A) reacts with $H_2$ to form a highly associated liquid (B) and a monoatomic colorless gas (C). The liquid (B) is used for etching glass. Compound (A) undergoes hydrolysis slowly to form (C), (B) and a diatomic gas (D) whose IE is almost similar to that of (C). (B) forms an addition compound with KF to form (E) which is electrolyzed in the molten state to form a most reactive gas (F) which combines with (C) in a 1: 1 ratio to produce (A).

1. Ionic
2. Ionic and Covalent both
3. Ionic, Covalent and Metallic
4. Ionic, Covalent and H-bonds