Question

1g of Mg is burnt in a vessel containing
0.5g ofO2. The reactant remaining un-
reacted is?
(A) 0.25g of Mg
(B) 0.1g of Mg
(C) 0.1gt of O2
(D) 0.75g of Mg​

Answer 1

$\huge\bf{AnswEr -}$

According to the reaction 2 mol (or 2×24.3=48.6g) Mg reacts with 32 g oxygen. 1 g of Mg ... oxygen but given oxygen is 0.5 g ∴ oxygen is the limiting reagent ... Excess of Mg left =1−0.75=0.25g ... 1g Mg was burnt in a.

Answer 2

Hii I will help you ✌️

1g of Mg is burnt in a vessel containing0.5g ofO2. The reactant remaining un-reacted is?

(A) 0.25g of Mg✔️✔️

(B) 0.1g of Mg

(C) 0.1gt of O2

(D) 0.75g of Mg