Assertion : N2F3+ is planar at each nitrogen atom.

Reason : N3H, the bond angle HNN is 120° and both the NH bond lengths are not equal.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false

Subtopic:  Hybridisation | V.S.E.P.R & V.B.T |
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Assertion : Carbon has unique ability to form - multiple bonds with itself and with other

                  atoms of small size and high electronegativity.

Reason : Heavier elements of group 14th do not form - multiple bonds with itself because

               their atomic orbitals are too large and diffuse to have effective overlapping.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Types of Chemical Bond |
 52%
From NCERT
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Assertion : NO+ and CN- both have same bond order and magnetism

Reason : NO+ and CN- are isoelectornic species.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  M.O.T |
 78%
From NCERT
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Assertion : Crystals of hydrated calcium sulphate gypsum : CaSO4, 2H2O are soft and easily cleaved.

Reason : Crystals of anhydrous calcium sulphate anhydrite : CaSO4 are very hard and very difficult

               to cleave.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Acidic, Basic Character & Fajan's Rule |
 67%
From NCERT
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 When two atoms combine to form a molecule, energy is: 

1. Released. 2. Absorbed.
3. Neither released nor absorbed. 4. Either released or absorbed.
Subtopic:  Types of Chemical Bond |
 79%
From NCERT
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A compound having the Highest Melting Point :

1. BeCl2

2. MgCl2

3. CaCl2

4. SrCl2

Subtopic:  Acidic, Basic Character & Fajan's Rule |
 58%
From NCERT
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The diamagnetic species among the following is-

1. NO

2. CO

3. O2

4. B2

Subtopic:  M.O.T |
 75%
From NCERT
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Which of the statements are not true for AlCl3-

1. AlCl3 fumes in moist air forms HCl with moisture

2. Anhydrous AlCl3 exists as Al2Cl6

3. Anhydrous AlCl3 is ionic

4. Anhydrous AlCl3 is trigonal planar molecule at higher temperature

Subtopic:  Covalent Bond |
 57%
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Valency expresses-

1. Total electrons in an atom

2. Atomicity of an element

3. Oxidation number of an element

4. Combining capacity of an element

Subtopic:  Types of Chemical Bond |
 67%
From NCERT
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Compounds that have a maximum value of lattice energy among the following, is:
 

1. NaF 2. NaCl
3. NaBr 4. NaI
Subtopic:  Lattice & Hydration Energy |
 75%
From NCERT
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