Choose the correct answer from the options given below: (A) A and D only (B) A and C only (C) A and — JEE Mains Chemistry Past Papers Chemistry Question

💡 Solution & Explanation

(A) 12Mg 24 represents 12 protons and 12 neutrons. (B) 15 C 3 10 4.5 10      = 6.67 × 10 –8 m. (C) 1 2 1 E hC / E hC /       2 E 1 E 3   (false) (D) No. of photons = Energy hC /  = 10 16 (True)