Question

In which book will we get this kind of questions
Can anyone mentions some books name to prefer these kind of questions
1.Calculate the pH of a solution which contains 9.9 ml of 1 M HCl and 100 ml of 0.1 M NaOH

2.What is the number of water molecules of crystallization present in dolomite ore

3.A piece of wire of resistance 16 kΩ is cut into four equal parts and all the pieces are connected in
parallel to each other. The new combination (parallel) of resistor is equal to 10n ohm. What is the
value of n?

4.Three identical bulbs are connected in series and these together dissipate a power P. If now the
bulbs are connected in parallel, then the power dissipated will be nP. Find the value of n

Answer 1

cengage series for chemistry and physics
or u can also use basic books like disha publications

Answer 2

1,2 questions can be 
prefered by "IRDOY"
next two physics can be prefered by "H.C varma,MTG series"