The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is 'y'. The value of x + y is

Question

The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is 'y'. The value of x + y is …

(A) 4
(B) 6
(C) 3
(D) 9

Prashant Kotian · Accepted Answer

Correct answer: D. More abundant isotope = B11 [Number of neutrons = 6] x = 6 B + O2  B2O3 Oxidation state of B in B2O3 = +3 So, y = 3 Hence x + y = 9 SECTION-B

💡 Solution & Explanation

Practice 22,000+ questions like this