Question
Short-sighted person cannot see _____ objects clearly. Short-sightedness can be corrected by using _____ lenses.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
|
|
Name of the salt
|
Formula
|
Salt obtained from
|
|
|
|
|
|
Base
|
Acid
|
|
(i)
|
Ammonium chloride
|
$NH_4Cl$
|
$NH_4OH$
|
-
|
|
(ii)
|
Copper sulphate
|
-
|
- |
$H_2SO_4$
|
|
(iii)
|
Sodium chloride
|
NaCl
|
NaOH
|
-
|
|
(iv)
|
Magnesim nitrate
|
$Mg(NO_3)_2$
|
-
|
$HNO_3$
|
|
(v)
|
Pottasium sulphate
|
$K_2SO_4$
|
-
|
-
|
|
(vi)
|
Calcium nitrate
|
$Ca(NO_3)_2$
|
$Ca(OH)_2$
|
-
|