p-Block Elements  MCQs

MCQs of p-Block Elements

Showing 111 to 120 out of 173 Questions
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111.
Which of the following have P-O-P bond ?
(a) Hypo phosphorous acid
(b) Phosphorous acid
(c) Pyro phosphoric acid
(d) Ortho phosphoric acid
Answer:

Option (c)

112.
P4O10 is an anhydride of which compound ?
(a) H3PO2
(b) H3PO3
(c) H3PO4
(d) H4P2O7
Answer:

Option (c)

113.
What is the product when P4O10 is dissolves in water ?
(a) Phosphorous acid
(b) Orho phosphoric acid
(c) Phosphoric acid
(d) None of these
Answer:

Option (b)

114.
With which of the following compound conc. HCl will give Cl2 gas at room temperature ?
(a) MnO2
(b) H2S
(c) KMnO4
(d) Cr2O3
Answer:

Option (c)

115.
NO2is not obtained by heating which compound ?
(a) AgNO3
(b) KNO3
(c) Cu(NO3)2
(d) Pb(NO3)2
Answer:

Option (b)

116.
What is not correct at normal temperature and pressure ?
(a) P4O10 is a white solid
(b) SO2 is colorless gas
(c) SO3 is colorless gas
(d) NO2 is a brown colored gas
Answer:

Option (c)

117.
Which of the following elements is non-metal ?
(a) As
(b) N
(c) Sb
(d) Bi
Answer:

Option (b)

118.
In which phosphoprotein is present ?
(a) Eggs and milk
(b) Bones
(c) Living cells
(d) All the given
Answer:

Option (a)

119.
What are the oxidation states of nitrogen ?
(a) +3 to +5
(b) -3 to +5
(c) +3 to -5
(d) -3 to -5
Answer:

Option (b)

120.
Which is used as promoter in small proportion with catalyst FeO used in manufacturer of ammonia gas ?
(a) K2O • Fe2O3
(b) K2O • CrO2
(c) K2O • Fe3O4
(d) K2O • Al2O3
Answer:

Option (d)

Showing 111 to 120 out of 173 Questions
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