RRB NTPC · Question 17
Match the following and select the correct code.
| A) Quick lime | P) Co(NH_2)_2 |
|---|---|
| B) Slaked lime | Q) Na_2CO_3 |
| C) Urea | R) CaO |
| D) Washing soda | S) Ca(OH)_2 |
A. A - S, B - R, C - P, D - Q B. A - R, B - S, C - Q, D - P C. A - R, B - S, C - P, D - Q D. A - S, B - R, C - Q, D - P
Show answer & explanation
Answer: (A) C
Explanation
Quick lime is CaO, slaked lime Ca(OH)₂, urea CO(NH₂)₂ and washing soda Na₂CO₃: A–R, B–S, C–P, D–Q.