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Practice Test - Chemistry 14

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Question 1

Iron exhibits + 2 and +3 oxidation states. Which of the following statements about iron is incorrect?

Question 2

The coagulating power of electrolytes having ions Na⁺, Al³⁺ and Ba²⁺ for arsenic sulphide sol increases in the order:

Question 3

For gaseous state, if most probable speed is denoated by C*, average speed by and mean square speed by C, then for a large number of molecules the ratios of these speeds are

Question 4

Calomel (Hg₂Cl₂) on reaction with ammonium hydroxide gives

Question 5

Consider the following reaction:

The values of x, y and z in the reaction are, respectively:

Question 6

A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of 290 mm at 300 K. The vapour pressure of propyl alcohol is 200 mm. If the mole fraction o ethyl alcohol is 0.6, its vapour pressure
(in mm) at the same temperature will be:

Question 7

Standard reduction electrode potentials of three metals A, B and C are +0.5V, –3.0V and –1.2 V respectively. The reducing power of these metals are

Question 8

In S_N2 reactions, the correct order of reactivity for the following compounds :
CH₃Cl, CH₃CH₂Cl, (CH₃)₂CHCl and (CH₃)₃CCl is :

Question 9

Which of the following compounds can be detected by Molisch's test?

Question 10

Nylon threads are made of

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Nov 26JEE & BITSAT