Question

100 ml of 0.2M NaOH is exactly neutralised by a mixture of which of the following?
1) 100 my of 0.1 Hcl+100ml of 0.1M H2SO4
2)100ml of 0.1M HCl +50ml of 0.1M H2SO4
3)50ml of0.1M HCl +50ml of 0.1M H2SO4
4)50ml of 0.1HCl +100ml of 0.1M H2SO4

Answer 1

2)100ml of 0.1M HCl +50ml of 0.1M H2SO4 is the Correct answer because 

for Neutralization 
N1V1=(N2V2+N3V3)

Answer 2

2 is the correct answer