p-Block Elements  MCQs

MCQs of p-Block Elements

Showing 1 to 10 out of 173 Questions
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1.
How many groups are there in p-block element ?
(a) 3
(b) 4
(c) 5
(d) 6
Answer:

Option (d)

2.
What is the molecular formula of chilie salt petre ?
(a) KNO3
(b) NaNO3
(c) CaNO32
(d) BaNO32
Answer:

Option (b)

3.
For the presence of which of the following ions, ring test is useful ?
(a) NO-
(b) NO3-
(c) NO2
(d) N2O
Answer:

Option (b)

4.
Which of the following groups of four elements is called chalcogens ?
(a) Nitrogen, phosphorous, arsenic and antimony
(b) Oxygen, sulphur, selenium and tellurium
(c) Fluorine, chlorine, bromine, iodine
(d) Helium, neon, argon, kryptone
Answer:

Option (b)

5.
Which of the following electronic configuration is the general electronic configuration of elements of group 16 ?
(a) ns2np3
(b) ns2np4
(c) ns2np6
(d) ns2np5
Answer:

Option (b)

6.
Which of the following oxoacids of chlorine is most stable?
(a) HClO3
(b) HClO
(c) HClO4
(d) HClO2
Answer:

Option (c)

7.
Which of the following order with reference to stability is correct ?
(a) HF>HBr>HCl>HI
(b) HI<HCl<HBr<HF
(c) HF>HCl>HBr>HI
(d) HF>HI>HCl>HBr
Answer:

Option (c)

8.
Which of the following is the inter halogen compound ?
(a) XeF4
(b) IF7
(c) NaCl
(d) CaF2
Answer:

Option (b)

9.
What is the molecular formula of oleum ?
(a) H2SO3
(b) H2SO5
(c) H2S2O7
(d) H2S2O8
Answer:

Option (c)

10.
In which of the following oxides of nitrogen, the oxidation state of nitrogen element is (+4) ?
(a) N2O3
(b) N2O4
(c) N2O5
(d) N2O
Answer:

Option (b)

Showing 1 to 10 out of 173 Questions
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