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Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

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Chemistry
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Draw the structure of XeF4

[7] P - Block Elements
Chapter: [7] P - Block Elements
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Which of the following fluorides does not exist?

[7] P - Block Elements
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Partial hydrolysis of XeF4 gives ____________.

[7] P - Block Elements
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Helium is preferred to be used in balloons instead of hydrogen because it is ____________.

[7] P - Block Elements
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In which of the following pairs, the two species are isostructural:

[7] P - Block Elements
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Which of the following reactions is an example of redox reaction?

[7] P - Block Elements
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Match the compounds given in Column I with the hybridisation and shape given in Column II and mark the correct option. 

Column I Column II
(A) XeF6 (1) sp3d3 – distorted octahedral
(B) XeO3 (2) sp3d2 – square planar
(C) XeOF4 (3) sp3 – pyramidal
(D) XeF4 (4) sp3d2 – square pyramidal
[7] P - Block Elements
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Substance having the lowest boiling point ______.

[7] P - Block Elements
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On partial hydrolysis, XeF6 gives ______.

[7] P - Block Elements
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Account for the following : 
Although Fluorine has less negative electron gain enthalpy yet F2 is a strong oxidizing agent.

[7] P - Block Elements
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What is the basicity of H3PO4 ?

[7] P - Block Elements
Chapter: [7] P - Block Elements
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