Solution Test

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Solution Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

25 ml of 3.0 M HNO₃ are mixed with 75 ml of 4.0 M HNO₃. If the volumes are additive, the molarity of the final mixture would be

A
3.25 M

B
4.0 M

C
3.75 M

D
3.50 M

Solution

M₁V₁ + M₂V₂ = MV
Question 2
1 / -0

The normality of 0.3 M phosphorus acid (H₃PO₃) is

A
0.1

B
0.9

C
0.3

D
0.6

Solution

Basicity of H₃PO₃ is 2.

Hence 0.3 m H₃PO₃= 0.6 N.
Question 3
1 / -0

Which of the following has maximum number of molecules

A
16 gm of O₂

B
16 gm of NO₂

C
7 gm of N₂

D
2 gm of H₂

Solution

2 gm. Hydrogen has maximum number of molecules than others.
Question 4
1 / -0

20 ml of HCl solution requires 19.85 ml of 0.01 M NaOH solution for complete neutralization. The molarity of HCl solution is

A
0.0099

B
0.099

C
0.99

D
9.9

Solution

M₁V₁ = M₂V₂

0.01 x 19.85 = M2 x 20

M₂ = 0.009925 M = 0.0099