Draw the structures of the following :XeF6 from Class 12 CBSE P

Subject

Chemistry

Class

CBSE Class 12

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Sample Papers

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 Multiple Choice QuestionsShort Answer Type

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11.

Draw the structures of the following :
XeF6


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12.

Calculate the degree of dissociation (a) of acetic acid if its molar conductivity (Λm) is 39.05 S cm2mol–1. Given λo(H+) = 349.6 S cm2 mol–1 and λo(CH3COO) = 40.9 S cm2 mol–1

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13.

A 10% solution (by mass) of sucrose in water has the freezing point of 269.15 K.Calculate the freezing point of 10% glucose in water if freezing point of pure water is273.15 K.

Given : (Molar mass of sucrose = 342 g mol–1) (Molar mass of glucose = 180 g mol–1)

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14.

Calculate the mass of Ag deposited at cathode when a current of 2 amperes was passed through a solution of AgNO3 for 15 minutes.
(Given : Molar mass of Ag = 108 g mol–1 1F = 96500 C mol–1)

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15.

Define fuel cell.

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16.

What type of isomerism is shown by the complex [Co(NH3)6] [Cr(CN)6]?

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17.

Why a solution of [Ni(H2O)6]2+ is green while a solution of [Ni(CN)4]2– is colourless? (At. no. of Ni = 28)

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18.

Write the IUPAC name of the following complex : [Co(NH3)5(CO3)]Cl.

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19.

Write one difference in each of the following :
Lyophobic sol and Lyophilic sol

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20.

Write one difference in each of the following:
Solution and Colloid

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