Acids bases and salts

Question 1

Acids are derived from latin word meaning ____

Answer 1

Sour

Question 2

Acid is a compound which when dissolved in water yields ______ ions as the only _____ charged ions

Answer 2

Hydronium (H3O+) ions , positively

Question 3

HCl + H2O -> ___ + ___

Answer 3

H3O+ , Cl-

Question 4

Base is a compound which reacts with hydronium ions of ___ to give ___ and ___ only

Answer 4

Acids, salt, water

Question 5

CuO + 2HCl -> ___ + ____

Answer 5

CuCl2, H2O

Question 6

Cu(OH)2 + H2SO4 -> ___ + ___

Answer 6

CuSO4 , 2H2O

Question 7

Bases are _______ or _______ of a metal

Answer 7

Oxides, Hydroxides

Question 8

Example of bases which are not alkalis

Answer 8

ZnO
PbO
CuO
Fe(OH)2
Pb(OH)2
Cu(OH)2

Question 9

An alkali is a compound which when dissolved in water yields ____ ions as the only ___ charged ions

Answer 9

Hydroxyl(OH-) ions , negatively

Question 10

Alkalis are ___ bases

Answer 10

Soluble

Question 11

NaOH –> __ + __

Answer 11

Na+, OH-

Question 12

Example of alkalis

Answer 12

NaOH, KOH( Strong)

Ca(OH)2, NH4OH (Weak)

Question 13

All alkalis are ___ but all bases are not ____

Answer 13

bases, alkalis

Question 14

On basis of source of acids, how can u classify acids

Answer 14

Organic and inorganic

Question 15

Organic acids are acids derived from ___

Answer 15

Plants

Question 16

Example of organic acids

Answer 16

Citric, oxalic, tartaric, acetic acids

Question 17

Inorganic acids are derived from ___ and are also known as ___

Answer 17

Minerals, mineral acids

Question 18

Example of inorganic acids

Answer 18

HCl, HNO3, H2SO4, HI

Question 19

On basis of molecular composition of acids, how can u classify acids

Answer 19

Hydracids and oxyacids

Question 20

Hydracids must contain ____ and ______

Answer 20

Hydrogen and non metal except oxygen

Question 21

Oxyacids must contain ___, ____ and ___

Answer 21

Hydrogen, another element and oxygen

Question 22

Example of hydracids

Answer 22

HCl, HBr HI

Question 23

Example of oxyacids

Answer 23

HNO3, H2SO4

Question 24

Strength of an acid depends on

Answer 24

Conc of H3O+ ions present in aq.soln of acid

Question 25

Strong acid produces ___ concentration of H+ or H3O+ ions

Answer 25

High

Question 26

Example of strong acid

Answer 26

HCl, H2SO4, HNO3

Question 27

Example of weak acid

Answer 27

Acetic, citric, carbonic acid

Question 28

Strength of alkali depends on

Answer 28

Conc of OH- ions present in aq.soln of alkali