Question

The colour of the flame when calcium burns vigorously in the air:

• A. Bright red
• B. Brick red
• C. Bright green
• D. Yellow

Answer 1

The correct option is B

Brick red

Correct answer- b. brick red

When salts of Calcium (Ca²⁺) burn in the air vigorously, a brick red colour is imparted.

Incorrect answer-

a. Bright red colour is not exactly visible but crimson red is imparted when Strontium chloride (SrCl₂) is burned in the air.

c. Bright green is not exactly visible but bluish-green colour imparted when Copper (Cu²⁺) salt burns in air.

d. Yellow colour imparted when Sodium (Na⁺) salts burn in air.

Hence, the correct answer is option (b).