Subject :NSO Class : Class 7
Which of the following statements is/are incorrect?
I. Oxalic acid is used in the manufacture of washing
soda.
II. Tartaric acid is a weak acid.
III. Potassium hydroxide is used for making liquid
soaps.
IV. Antacids contain aluminium or magnesium
hydroxides.
V. New substance formed as a result of reaction
between an acidic substance and a basic substance
is always a neutral salt.
AII and III only
BII and III only
CIV only
DI, II and III only
Option A and Option B are same