02 Acids and Bases

Which of the following is acidic in nature?

• Baking Soda

• Lemon Juice

• Antacid

A blue litmus turns red when it reacts with _____ .

• Acid

• Base

• Salt

Ant releases _____ acid when it bites.

• Citric acid

• Formic acid

• Oxalic acid

When methyl orange is mixed with citric acid it turns to _____.

• Red

• Blue

• Colourless

Phenolphthalein turns to ____ in basic solution .

• Yellow

• Pink

• Green

Milk of Magnesia is _______ in nature.

• Acidic

• Basic

• Neutral

______ gas is released when Nitric acid is added to a egg shell.

• O₂

• NO₂

• CO₂

Lactic acid is present in ___________ .

• Butter milk, Cheese

• Lemon, Orange

• Butter milk, Curd

______ is a characteristic feature of a base.

• Red litmus changes to blue

• Hydrogen gas released when reacts with metals

• Sour in taste

Tea contains ________ .

• Oleic acid

• Stearic acid

• Tannic acid