12th class (Fsc) Chemistry unit 4 MCQs

a. Nitrogen
b. Phosphorous
c. Sulphur
d. Oxygen

d. Oxygen

a. Zn,Mg,Hg
b. Fe,Zn,Cu
c. Fe,Sn,Ag
d. Sn,Mg,Fe

d. Sn,Mg,Fe

a. Flint and quartz
b. Metallic and non metallic
c. A And b
d. Red and gray

b. Metallic and non metallic

a. H2S2O6
b. Vitriol
c. SO2
d. Oleum

d. Oleum

a. Oxidizing agent
b. Reducing agent
c. Dehydrating agent
d. Both a and b

d. Both a and b

a. FeSO4
b. Fe(OH)2
c. Fe(SO4)3
d. Fe(OH)3

d. Fe(OH)3

a. H3PO4
b. H2SO4
c. HMPO3
d. Oleum

b. H2SO4

a. Moseley
b. Jabir Bin Hayyan
c. Al Razi
d. None of these

b. Jabir Bin Hayyan

a. Does not react
b. Reacts vigorously
c. Reacts on heating
d. Reacts moderately

a. Does not react

a. Pb,Cu
b. Zn,Fe
c. Au,Pt
d. Sn,Mg

a. Pb,Cu

a. S
b. Si
c. P
d. C

d. C

a. H2S2O3
b. SO2
c. H2SO3
d. SO3

d. SO3

a. HCL
b. HNO3
c. HNO2
d. H2SO4

d. H2SO4

a. Reaction is exothermic
b. Reaction does not go completion
c. SO3 is insoluble in water
d. Reaction is quite slow

a. Reaction is exothermic

a. Dehydrating agent
b. Oxidizing agent
c. Carbonating agent
d. Reducing agent

a. Dehydrating agent

a. Sulphonating agent
b. Hygroscopic agent
c. Efflorescent
d. Oxidizing agent

c. Efflorescent

a. NO2
b. SO2
c. HCI
d. NH3

d. NH3

a. H2SO4 is acid as well as dehydrating agent
b. Each molecule produces two H+ ions
c. It gives two OH ion
d. None of these

b. Each molecule produces two H+ ions

a. Sb
b. N
c. Bi
d. P

b. N

a. P
b. Sb
c. As
d. N

d. N

a. N2O4
b. N2O
c. N2O5
d. N2O3

a. N2O4

a. NO2
b. N2O5
c. NO3
d. N2O3

a. NO2

a. NO
b. NO2
c. N2O4
d. N2O

d. N2O

a. S
b. Te
c. Po
d. Se

b. Te

a. The reaction is highly exothermic
b. The reaction does not go to completion
c. SO3 is insoluble in water
d. The reaction is quite slow

a. The reaction is highly exothermic

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *