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In a molecule AB there is a lone pair in the valence shell of central atom. The shape of molecule.

Monjur Alahi

In a molecule AB there is a lone pair in the valence shell of central atom. The shape of molecule.

 A) Tetrahydral 

B) Linear 

C) Pyramidal 

D) Plane triangular


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1 Answers

Salim Ahmed Kawsar

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Correct option is  C) Pyramidal

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If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?

The element having valence shell electronic configuration 3s2 3p1 must be placed in the p - block of the periodic table as its last electron enters in p-subshell (3p).

2 Answers 1 views
l = 0 — i) d – sub shell , 1 = 1 — ii) s – sub shell  , 7 = 2 — iii) f – sub shell 

C) a → ii, b → iv, c → i, d → iii

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valence of group IA — i) 4  , valence of group IVA — ii) 0 

D) a → iii, b → i, c → iv, d → ii

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Match the following: Two bond pairs — i) trigonal planar without lone pair ,Three bond pairs — ii) linear without lone pair 

B) a → ii, b → i, c → iii

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The shape and number of lone pairs of electrons in water molecule is

B) V shape, 2

2 Answers 1 views
The molecule with two bond pairs in two covalent bonds around the nucleus of the central atom without any lone pair in the valance shell is

Correct option is  A) BeCl2

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The valence shell of the central atom of a molecule has four bond pairs of electrons. Shape of the molecule is ……………..

D) Tetrahydral

2 Answers 1 views
A molecule having 2 bond pairs and 2 lone pairs in the valence shell of its central atom. 

Correct option is  A) H2O

2 Answers 1 views
The number of bond pairs and lone pair of electrons in O2 molecules respectively.

Correct option is  D) 2, 4

2 Answers 1 views
What will be the shape of molecule whose central atom is associated with 3 bonds and one lone pair?

Option : (A) Trigonal pyramidal

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