acids,bases and salts class7

 Which of the following is an acid?

• shampoo
• baking soda
• orange juice
• water

Which of these taste sour?

• acids

• bases

• salts

Which of these feel slippery?

• bases

• acids

• salts

Which of these turn red litmus paper blue?

• acids

• bases

• salts

Tags

NGSS.MS-PS1-2

Chemicals formed when an acid and a base combine.

• salts

• noble gases

• metalloids

• hydroxides

Tags

NGSS.MS-PS1-2

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

• Citric

• Lactic

• Ascorbic

• Acetic

Bases turn Red litmus to ...................

• Green

• Yellow

• Blue

• Black

If the given solution neither changes the colour of the red litmus nor blue litmus paper , it is ..........................

• An Acid

• A base

• Neutral

• Colourless

Tags

NGSS.MS-PS1-2

The Substance which turns Blue litmus red is ......................

• Basic

• Acidic

• Neutral

• All of these

Tags

NGSS.MS-PS1-2

Manure is added , when the soil is too ...................................

• Acidic

• Basic

• Neutral

• None of these

Tags

NGSS.MS-PS1-2