JEE Main levelSingle correct optionDifficulty 2 of 3bn029
Match the anions in Column I with their names in Column II.
Column I: (P) OCNX−; (Q) SCNX−; (R) CNX−; (S) NX3X−.
Column II: (1) cyanide; (2) cyanate; (3) thiocyanate; (4) azide.
AP-1, Q-3, R-2, S-4
BP-2, Q-3, R-1, S-4
CP-3, Q-2, R-1, S-4
DP-2, Q-3, R-4, S-1
Answer: B
OCNX− is cyanate, SCNX− is thiocyanate, CNX− is cyanide and NX3X− is azide. So P-2, Q-3, R-1, S-4.