acid base and salt

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

what is the nature of HNO₂

• a base

• a salt

• an acid

• an ionic compound

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.
• Red litmus paper turns blue when placed in a base.
• Blue litmus paper stays blue when placed in an acid.
• Red litmus paper stays red when placed in a base.

Fruits such as oranges , lemon etc, contain ........................... Acid

• Citric

• Lactic

• Ascorbic

• Acetic

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

what is the nature of HNO₂

• a base

• a salt

• an acid

• an ionic compound

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.
• Red litmus paper turns blue when placed in a base.
• Blue litmus paper stays blue when placed in an acid.
• Red litmus paper stays red when placed in a base.

Fruits such as oranges , lemon etc, contain ........................... Acid

• Citric

• Lactic

• Ascorbic

• Acetic

Setting of Plaster of Paris takes place due to

• Oxidation
• Reduction
• Dehydration
• Hydration

baking soda has the formula

• Na2CO3.7H2O
• Na2CO3.10H2O
• Na2CO3.H2)
• Na2CO3