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Freddie12
Freddie12
@freddie12
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Joined: Sep 21, 2020
Last seen: Oct 19, 2020
Topics: 0 / Replies: 2094
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Answer to: Through a solution of CuSO4 a current of 3 amperes was passed for 2 hours.

(b) 42.2% Explanation: According to law of electrolysis, Mass deposited (m) = Z i t or i = m x 96500/t x Z Here, m = 3g, t = 2 × 60 × 60 = 7...

5 years ago
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Answer to: Effect of dilution on conductivity of solution:

(a) Increases Explanation: The conductivity of a weak electrolyte increases with increase in dilution due to increase in ionisation. Remember that...

5 years ago
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Answer to: Assertion: Lone pair-lone pair repulsive interactions are greater than lone pair-bond pair and bond pair-bond pair interactions.

(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion. Explanation: While the lone pairs are locali...

5 years ago
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Answer to: Assertion: LiCl is predominantly a covalent compound. Reason: Electronegativity difference between Li and Cl is too small.

(c) If Assertion is correct but Reason is incorrect. Explanation: LiCl is a covalent compound. Due to the large size of the anion (Cl-) its effect...

5 years ago
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Answer to: Assertion: Bond angle of H2S is smaller than H2O. Reason: Electronegativity of the central atom increases, bond angle decreases.

(c) If Assertion is correct but Reason is incorrect. Explanation: Bond angle of H2S (92°) < H2O (104°31). As the electronegativity of the centr...

5 years ago
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Answer to: Assertion: Molecules of larger size have higher polarizability.

(c) If Assertion is correct but Reason is incorrect. Explanation: Assertion is true but Reason is false. As the size of the atom increases the inf...

5 years ago
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Answer to: Assertion: Fluorine molecule has bond order one. Reason: The number of electrons in the antibonding molecular orbitals

(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: MO electronic configuration of...

5 years ago
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Answer to: Assertion: Molecular nitrogen is less reactive than molecular oxygen.

(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: Nitrogen molecule has triple b...

5 years ago
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Answer to: Assertion: Ozone is powerful oxidising agent in comparison to O2.

(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. Explanation: Ozone is a powerful oxidising ...

5 years ago
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Answer to: Assertion: B2 molecule is diamagnetic.

(d) If both the Assertion and Reason are incorrect. Explanation: B2 molecule has no of electrons = 10 Molecular orbital configuration σ(1s)2,σ...

5 years ago
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Answer to: Assertion: SeCl4 does not have a tetrahedral structure.

(c) If the Assertion is correct but Reason is incorrect. Explanation: SeCl4 has distorted trigonal pyramidal geometry; here Se has only one lone p...

5 years ago
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Answer to: Assertion: All F-S-F angle in SF4 are greater than 90° but less than 180°.

(d) If both the Assertion and Reason are incorrect. Explanation: SF4 has see-saw type structure in which bond angles are different between differe...

5 years ago
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Answer to: Assertion: The O-O bond length in H2O2 is shorter than that of O2F2. Reason: H2O2 is an ionic compound.

(d) If both the Assertion and Reason are incorrect. Explanation: H2O2 is a covalent compound. In O2F2, O – O bond is shorter than in H2O2 due to h...

5 years ago
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Answer to: Assertion: Sigma (σ) is a strong bond, while pi (π) is a weak bond.

(c) If the Assertion is correct but Reason is incorrect. Explanation: Sigma (σ) bond is formed by axial overlap of atomic orbitals while pi (π) bo...

5 years ago
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Answer to: Assertion: Boiling and melting points of amides are higher than corresponding acids.

(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

5 years ago
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Answer to: Assertion: Water is liquid but H2S is a gas. Reason: Oxygen is paramagnetic.

(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. Explanation: Water is liquid but H2S is gas...

5 years ago
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Answer to: Which of the following substances has the least covalent character?

(d) BaCl2 Explanation: According to Fajan's rule : Covalent character ∝ 1/size of cation ∝ size of cation Among the given species order of s...

5 years ago
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Answer to: XeO4 molecule is tetrahedral having :

(c) Four pπ – dπ bonds Explanation: Xenon undergo sp3 hybridization. 2s.png In the fourth excited state xenon atom, has 8 unpaired electrons ...

5 years ago
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Answer to: List I List II Compound Structure A. ClF3 - 1. Square planar

(b) A-5, B-3, C-4, D-2, E-1 Explanation: List I List II Compound Structure A. ClF3 - 5. T-shaped B. PCl5 ...

5 years ago
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