Match the metal ion in Column I with the flame colour in Column II. Column I: (P) Na+, (Q) K+, (R) Ca^2+, (S) Ba^2+. Column II: (1) golden yellow, (2) lilac, (3) brick-red, (4) apple-green.

MolSynapse / Question bank / s-Block Elements / General trends of alkali and alkaline earth metals

JEE Main levelSingle correct optionDifficulty 2 of 3sb007

Match the metal ion in Column I with the flame colour in Column II. Column I: (P) $Na X^{+}$ , (Q) $K X^{+}$ , (R) $Ca X^{2 +}$ , (S) $Ba X^{2 +}$ . Column II: (1) golden yellow, (2) lilac, (3) brick-red, (4) apple-green.

AP-1, Q-2, R-3, S-4
BP-2, Q-1, R-3, S-4
CP-1, Q-2, R-4, S-3
DP-3, Q-2, R-1, S-4

Answer: A

Sodium gives the intense golden-yellow flame, potassium a lilac (violet) flame, calcium a brick-red flame and barium an apple-green flame. Hence P-1, Q-2, R-3, S-4.

Practice s-Block Elements More on General trends of alkali and alkaline earth metals

Previous questionNext question

Match the metal ion in Column I with the flame colour in Column II. Column I: (P) NaX+, (Q) KX+, (R) CaX2+, (S) BaX2+. Column II: (1) golden yellow, (2) lilac, (3) brick-red, (4) apple-green.

Answer: A

More questions on General trends of alkali and alkaline earth metals

Match the metal ion in Column I with the flame colour in Column II. Column I: (P) $Na X^{+}$ , (Q) $K X^{+}$ , (R) $Ca X^{2 +}$ , (S) $Ba X^{2 +}$ . Column II: (1) golden yellow, (2) lilac, (3) brick-red, (4) apple-green.