All Questions

CA

Follow
Showing 141 - 150 out of 1465 Questions
17 Views

Question : Which of the following metal salts is responsible for permanent hardness in water?

Option 1: KCl

Option 2: Nacl

Option 3: Ca(HCO3)2

Option 4: CaCl2

Team Careers360 21st Jan, 2024

Correct Answer: Ca(HCO3)2


Solution : The correct option is Ca(HCO3)2.

The presence of bicarbonates of calcium and magnesium causes water to become temporarily hard, but the presence of soluble chlorides and sulphates of calcium and magnesium causes permanent hardness. Calcium bicarbonate, also called calcium

12 Views

Question : If a + b + c = 19, ab + bc + ca = 120, then what is the value of a3 + b+ c– 3abc?

Option 1: 18

Option 2: 23

Option 3: 31

Option 4: 19

Team Careers360 18th Jan, 2024

Correct Answer: 19


Solution : Given,
a + b + c = 19 and ab + bc + ca = 120
We know,
a3 + b3 + c3 – 3abc = (a + b + c) [(a + b + c)2 – 3(ab + bc +

13 Views

Question : Directions: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ab _ b _ bc _ ca _

Option 1: accbb

Option 2: abcca

Option 3: cacab

Option 4: abacb

Team Careers360 13th Jan, 2024

Correct Answer: cacab


Solution : Given:
_ab _ b _ bc _ ca _

To fill the series we have to divide the series – _ab / _ b _ / bc _ / ca _
Let's check each option –
First option: accbb; aab / cb

22 Views

Question : In July 2022, who was appointed as the Deputy Election Commissioner of India?

Option 1: R. K. Gupta

Option 2: Asit Rath

Option 3: Suranjan Das

Option 4: R. Dinesh

Team Careers360 23rd Jan, 2024

Correct Answer: R. K. Gupta


Solution : The correct answer is R. K. Gupta.

R. K. Gupta was named India's Deputy Election Commissioner in July 2022. By the decision of the Personnel Ministry, senior bureaucrat R. K. Gupta was designated as the deputy election commissioner. He replaces T. Sreekanth

The question have been saved in answer later, you can access it from your profile anytime. Access now