Question 1 The Lewis structure of PBry shows nonbonding (lone) electron pair(s) on P. Not yet answered Marked out of 2.50 Select one: Flag question O a. O b. 3 c. 1 O d. 2 What is the oxidation number of Bi in BiOH); ? Question 2 Not yet answered Marked out of 2.50 Select one: O a. +4 Flag question b. +5 c. +2 d. +3 Which ion is isoelectronic (has the same electronic configuration) with Ar? Select one: O a. Ca 2+ O b. Br - O c. Fe 2+ O d. F- All orbitals with the same value of the principal quantum number are said to belong to the same Select one: a group b. subshell c.class. d. shell en 5 When the following equation is balanced in acidic solution, nswered N2H4 - NH2OH out of 2.50 question Select one: a. 1 H20 molecules appear on the right b. 4 H,0 molecules appear on the right O c. 4 H20 molecules appear on the left O d. 2 H,0 molecules appear on the left tion 6 Which of these compounds does not follow the octet rule? tanswered (i) NF3 (ii) CF4 (iii) PFS (iv) ASH ed out of 2.50 s question Select one: a. (ii) b. (iii) c. (iv) d. (i)