Uses of Slaked Lime

Q.

Assertion (A): Simple distillation can help in separating a mixture of propan-1-ol (Boiling point ${97}^{\circ }$) and propanone (boiling point ${56}^{\circ }$).

Reason (R): Liquids with a difference of more than ${20}^{\circ }$ in their boiling points can be separated by simple distillation.

1. Both A and R are correct but R is not the correct explanation of A

2. Both A and R are correct and R is the correct explanation of A.

3. Both A and R are not correct.

4. A is not correct but R is correct.

Q. Which of the following group IIA hydroxides is highly insoluble in water?

1. Mg(OH)₂

2. Be(OH)₂

3. Ca(OH)₂

4. Ba(OH)₂

Q. How much calcium is in the amount of Ca(NO3)2 that contains 20g of Nitrogen.

Q. 6) G (kJ/mol) values at 298 K for Ag+ (aq), Cl-(aq) and AgCI (s) are 77, -129 and -109 respectively for the given reaction, Ag (aq) + C (aq) AgCI(s) Then the solubility product of AgCl is

Q. if at certain temperature 40% of c2h6(g) dissociates into c2h4(g) and h2(g) and the equilibrium pressure becomes 5 atm then kp for the dissociation is?

Q. The suspension of slaked lime in water is known as :

1. milk of lime
2. lime water
3. quick lime
4. aqueous solution of slaked lime

Q. Calcium burns in nitrogen to produce a white powder which dissolves in sufficient water to produce a gas (A) and an alkaline solution. The solution on exposure to air produces a thin solid layer of (B) on the surface.
Find out B

1. CaO
2. $CaC{O}_3$
3. $C{a}_3{N}_2$
4. None of these

Q. Equation for reaction Between milk of lime and chlorine gas

Q.

$2Ca(OH{)}_2+2C{l}_2\to \underset{–}{A}+\underset{–}{B}+2H_{2}O$

A & B are

1. CaOCl₂, Ca(OH)₂ resp.

2. resp.

3. resp.

4. CaCl₂, Ca(OH)₂ resp.