Question

Correct order of atomic radii is :
पर ।।। ।।५।। १।। ।।।।।।।
(1) BALGa < In
(3) ALGU <B<in
(2) B < Ga < Al < In
(4) Ga < B < Al < In
3. Which of the following contains highest number of molecules ?
(1) 148 ONCO,
(2) 36 g of H,O
(3) 188 Oro
(4) 32 g of so,
​

Answer 1

answer no. 1
B<Ga<Al<In
this is the correct sequence as Ga is slightly smaller than Al ..

answer no 3.

Explanation:

In order to find the highest number of molecule you need to know the formula,

Answer:

That is,

No. of molecules = weight / molecular weight

Now let us see the options and check accordingly.

(1) 44g of CO2

No. of molecules = 44/44 = 1

(2) 36 g of H2O

No. of molecules = 36/18 = 2

(3) 48 g of SO

No. of molecules = 48/48 = 1

(4) 32 g of SO4

No. of molecules = 32/96 = 0.3

So by observing the results its clear that the highest number of molecules is in

36g of H2O