Two elements X and Y combine in gaseous state to form X Y in the ratio 1: 35.5 by mass. The mass of Y that will be required to react with 2 g of X is:

Question

Two elements X and Y combine in gaseous state to form X Y in the ratio 1: 35.5 by mass. The mass of Y that will be required to react with 2 g of X is: (A) 7.1 g (B) 3.55 g (C) 71 g (D) 35.5 g

Tardigrade Admin · Accepted Answer

1 g of X combines with Y =35.5 g ∴ 2 g of X combines with Y =2 × 35.5 g =71 g

Q. Two elements $X$ and $Y$ combine in gaseous state to form $X Y$ in the ratio 1: 35.5 by mass. The mass of $Y$ that will be required to react with $2 g$ of $X$ is:

7.1 g

3.55 g

71 g

35.5 g

$1 g$ of $X$ combines with $Y = 35.5 g$

$∴ 2 g$ of $X$ combines with $Y = 2 \times 35.5 g = 71 g$

Q. Two elements X and Y combine in gaseous state to form XY in the ratio 1: 35.5 by mass. The mass of Y that will be required to react with 2g of X is: