Tiêu đề P BLOCK(15, 16, 17, 18).pdf ✅

UNIT THE P-BLOCK ELEMENTS (GROUP 15,16,17 & 18) 04 Exercise 1: NCERT Based Topic-wise MCQs 4.0 INTRDUCTION 1. Which of the following group may contain metal, metalloids and non metals? NCERT Page-170 (a) Group 1 (b) Group 13 (c) Group 15 (d) both (b) and (c) 4.1 GROUP 15 ELEMENTS 2. Which of the following species has the highest dipole moment? (a) NH3 (c) AsH3 (b) PH3 (d) SbH3 3. The correct decreasing order of basic strength is: (a) AsH3 > SbH3 > PH3 > NH3 NCERT/Page-173 (b) SbH3 > AsH3 > PH3 > NH3 (c) NH3 > PH3 > AsH3 > SbH3 (d) PH3 > AsH3 > SbH3 > NH3 4. Ionic radii (in Å ) of As3+,Sb3+ and Bi3+ follow the order (a) As3+ > Sb3+ > Bi3+ NCERT/Page-171 (b) Sb3+ > Bi3+ > As3+ (c) Bi3+ > As3+ > Sb3+ (d) Bi3+ > Sb3+ > As3+ 5. Which of the following statements 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 6. Collectively the elements of group 15 are called- (a) pnicogens (b) pnicopens (c) nicopen