Acids Bases and Salts

Which among the following are organic acids?

• Citric acid

• Oxalic acid

• Hydrochloric acid

• Nitric acid

Which gas is evolved when a metal reacts with a dilute acid?

• Oxygen

• Nitrogen

• Hydrogen

• Carbondioxide

Which among the following is a strong base?

• Sodium carbonate

• Calcium carbonate

• Sodium hydroxide

• Sodium bicarbonate

An _______________ is a base that dissolves in water.

An acid reacts with a base to form salt and water this reaction is called _____________.

Which one among the following is an Universal Indicator?

• pH

• Litmus

• Phenolphthalien

• Vanilla Extract

Our stomach contains ___________ acid which helps in digestion.

Turmeric juice turns reddish brown in the presence of alkaline(basic) medium.

• Yes

• No

What is the common name of Calcium Oxychloride?

• Sodium chloride

• Baking soda

• Caustic soda

• Bleaching powder

Plaster of paris is a white powder and on mixing with water, it changes to _____________ giving a hard solid mass.