CBSE Class 12 The p Block Elements Multiple Choice Questions with Answers. MCQ Questions Class 12 The p Block Elements with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 The p Block Elements MCQs with Answers to know their preparation level.
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MCQ Questions Class 12 The p Block Elements with Answers - Set - 2
Question 1:
Which of the following phosphorus is the most reactive?
(a) Scarlet phosphorus
(b) White phosphorus
(c) Red phosphorus
(d) Violet phosphorus
Correct Answer – (B)
Question 2 :
Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because
(a) Zn act as oxidising agent when react with HNO3
(b) HNO3 is weaker acid than H2SO4 and HCl
(c) in electrochemical series Zn is above hydrogen
(d) NO3– is reduced in preference to hydronium ion.
Correct Answer – (D)
Question 3 :
Which of the following is a nitric acid anhydride?
(a) NO
(b) NO2
(c) N2O5
(d) N2O3
Correct Answer – (C)
Question 4 :
Aqueous solution of ammonia consists of
(a) H+
(b) OH–
(c) NH4+
(d) NH4+ and OH–.
Correct Answer – (D)
Question 5 :
Which of the following statement is not correct for nitrogen?
(a) Its electronegativity is very high.
(b) d-orbitals are available for bonding.
(c) It is a typical non-metal.
(d) Its molecular size is small.
Correct Answer – (B)
MCQ Questions Class 12 The p Block Elements with Answers
Question 6:
Sugarcane on reaction with nitric acid gives
(a) CO2 and SO2
(b) (COOH)2
(c) 2HCOOH(two moles)
(d) no reaction.
Correct Answer – (B)
Question 7:
When copper is heated with conc. HNO3 it produces
(a) Cu(NO3)2, NO and NO2
(b) Cu(NO3)2 and N2O
(c) Cu(NO3)2 and NO2
(d) Cu(NO3)2 and NO
Correct Answer – (C)
Question 8:
Which of the following oxides of nitrogen is paramagnetic?
(a) NO2
(b) N2O3
(c) N2O
(d) N2O5
Correct Answer – (A)
Question 9:
Urea reacts with water to form A which will decompose to form B. B when passed through Cu2+ (aq), deep blue colour solution C is formed. What is the formula of C from the following?
(a) CuSO4
(b) [Cu(NH3)4]2+
(c) Cu(OH)2
(d) CuCO3·Cu(OH)2
Correct Answer – (B)
Question 10:
Pure nitrogen is prepared in the laboratory by heating a mixture of
(a) NH4OH + NaCl
(b) NH4NO3 + NaCl
(c) NH4Cl + NaOH
(d) NH4Cl + NaNO2.
Correct Answer – (D)
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