In the species i) 4.0g of NaOH ii) 4.8g of

Discussion Forum : Mole Concept

Question -

In the species

i) 4.0g of $N a O H$ ii) 4.8g of $S O_{2}$

iii) 4.0 g of $C O_{2}$ iv) 2.8 g of $C a O$ ,

decreasing order of the weight of oxygen is

Options:

A . iii, ii, i & iv

B . i, ii, iv & iii

C . ii, iii, iv & i

D . ii, iii, i & iv

Answer: Option A
:
A

4.0g of $N a O H$ contains 1.6g of Oxygen

4.8g of $S O_{2}$ contains 2.4g of Oxygen

4.0 g of $C O_{2}$ contains 2.9g of Oxygen

2.8 g of $C a O$ contains 0.8g of Oxygen

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