Acids, Bases & Salts

Question 1

Color of acid with litmus and methyl orange

Answer 1

Turns blue litmus paper red, turns methyl orange red

Question 2

Acid + metal

Answer 2

Salt + hydrogen

Question 3

Acid + base

Answer 3

Salt + water

Question 4

Acid + metal carbonate

Answer 4

Salt + carbon dioxide + water

Question 5

Ammonium salt + alkali

Answer 5

Salt + ammonia + water

Question 6

Color of base with litmus and methyl orange

Answer 6

Turns red litmus blue, turns methyl orange yellow

Question 7

Acid

Answer 7

Acids are proton donors as they produce hydrogen ions (H+) when dissolved in water

Question 8

Base (Alkalis)

Answer 8

Bases are proton acceptors as they produce hydroxide ions (OH-) when discolored in water that can accept protons

Question 9

How acidic oxides are formed

Answer 9

When a non-metal combines with oxygen

Question 10

How basic oxides are formed

Answer 10

When a metal combines with oxygen

Question 11

Neutral oxides

Answer 11

N2O, NO, CO (no, no, co)

Question 12

Amphoteric oxide (and examples)

Answer 12

Amphoteric oxides behave as both acidic and basic (zinc oxide, aluminium oxide)