Question Text
Question 1 :
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
Question 2 :
The solution of bleaching powder in water is always a clear solution.<br/>
Question 8 :
Aquaregia is prepared by mixing conc. $HCl$ and $conc. HNO_3$ in the ratio ________ 
Question 11 :
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
Question 14 :
The pair of the solutions which have pH value less than 7 is:
Question 15 :
'Sodium bicarbonate solution has $pH$ less than 7.'<br/>State True or False:<br/>
Question 16 :
How would you distinguish between baking powder over washing soda by heating?<br/>
Question 18 :
By which we can measure the exact $pH$ of aqueous solution?
Question 19 :
One of the major constituents of baking powder is sodium hydrogen carbonate, the other constituent is:<br>
