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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 ……………..

Monjur Alahi

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

A) Linear 

B) Plane triangular 

C) Square planar 

D) Tetrahydral


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Salim Ahmed Kawsar

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D) Tetrahydral

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Select an appropriate chemical bond among ester bond, glycosidic bond, peptide bond and hydrogen bond and write against each of the following : (a) Po

Correct Answer - (a) Glycosidic bond (b) Peptide bond (c ) Ester bond (d) Hydrogen bond.

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

2 Answers 1 views
a) s – sub shell i) Maximum number of electrons is 6,  b) p – sub shell ii) Maximum number of electrons is 14 

C) a→iii, b→i, c→iv, d→ii

2 Answers 1 views
Match the following: Sharing one pair of electrons — i) Double bond  , Sharing two pairs of electrons — ii) Single bond 

C) a →ii, b →i, c → iii

2 Answers 1 views
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

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

2 Answers 1 views
AH2 is formed when element A reacts with hydrogen. Then the number of electrons in valence shell of A are generally 

Correct option is  A) 2

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

Correct option is  C) Pyramidal

2 Answers 1 views
The number of electrons in the valence shell of semiconductor is …………… 

Correct option is: (B) equal to 4

2 Answers 1 views

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