Question

The schematic atomic structures of three
elements X, Y and Z are given as
Х
Y
Z
Which of the following statements is/are
incorrect?
(1) Z can form ZClz and ZCI5.
(II) Y can exist in triatomic form.
(III) X and Y combine to form X3Y.
(IV) X and Z combine to form X3Z.
(V) X will gain one electron to form a stable
compound.
(VI) X and Y combine to form X2Y2, Z and Y
combine to form Y3Z2.
1 1, II, IV, V
2 I, II, III, IV, V
3 I, III, IV, V, VI
4 I, II, V, VI
+​

Answer 1

Answer:

OPTION D

Explanation:Correct option is D)

Answer 2

Here three atoms X Y Z are given

• X has two electrons in the outermost third  shell and it is Magnesium
• Y has 8 electrons in the outermost second shell and it  is  neon
• Z has 5 electrons in the outermost third shell and it is phosphorus

• so here Z can form ZCl₅ and ZCl₃ as pcl₅ and pcl₃ exist
• Y cannot exist in a triatomic state  as it is a noble gas
• X₃Y is not possible  as noble gas does not react
• X₃Z not possible
• no magnesium  after gaining 1 electron does not form a stable compound
• x and Y do not form X₂Y₂ and Y₃Z₂ is also not possible

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