GN6120_CHEMISTRY CLASS 7_ACID AND BASIS_G SURESH_EE21M001

Distilled water is

• acidic

• basic

• neutral

• none of the above

Ammonia that turns red litmus blue is

• acidic

• basic

• neutral

• none of the above

Ants bite injects

• acetic acid

• formic acid

• hydrochloric acid

• none of the above

The PH of pure water

Out of these gases which one is used in fire extinguishers?

• CO

• SO

• NO

• H

Why are acids not stored in a metal container?

Which of the following is an acid-base indicator?

• Vinegar

• Lime water

• Turmeric

• Baking sodaacid

What is the chemical formula for acetic acid?

• HCl

• H2SO4

• CH3COOH

• NaCl

PH scale range?

• 0-7

• 7-14

• 0-14

• 1-14

Name the scientist who developed the pH scale?