Question

10 cm3 of 0.1 N monobasic acid requires 15 cm3 of sodium hydroxide solution whose normality is

(A) 1.5 N
(B) 0.15 N
(C) 0.066 N
(D) 0.66 N

Answer 1

answer is c. see above solution

Answer 2

Answer: The correct answer is Option C.

Explanation:

To calculate the normality of the base, we use the equation:

$N_1V_1=N_2V_2$

where,

$N_1\text{ and }V_1$ are the normality and volume of the acid which is monobasic acid

$N_2\text{ and }V_2$ are the normality and volume of base which is sodium hydroxide

We are given:

$N_1=0.1N\\V_1=10cm^3\\N_2=?N\\V_2=15cm^3$

Putting values in above equation, we get:

$0.1\times 10=N_2\times 15\\\\N_2=0.066N$

Hence, the correct answer is Option C.