JEE (Advanced) 2012 Paper-2

Instructions

Bleaching powder and bleach solution are produced on a large scale and used in several house hold products. The effectiveness of bleach solution is often measured by iodometry.

Question 31

25mL of household bleach solution was mixed with 30mL of 0.50MKI and 10mL of 4N acetic acid. In the titration of the liberated iodine, 48mL of 0.25 N $$Na_2S_2O_3$$ was used to reach the end point. Themolarity of the household bleach solution is

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Question 32

Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is

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Instructions

In the following reactions sequence, the compound J is an intermediate.

$$J(C_9H_8O_2)$$ gives effervescence on treatment with $$NaHCO_3$$ and positive baeyer's test

Question 33

The compound K is

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Question 34

The compound I is

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Instructions

For the following questions answer them individually

Question 35

With respect to graphite and diamond, which of the statement(s) given below is (are) correct ?

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Question 36

The given graph / data I, II, III and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice (s) about I, II, III and IV is (are) correct

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Question 37

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is (are) correct ?

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Question 38

For the given aqueous reaction which of the statement(s) is (are) true ?

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Question 39

With reference to the scheme given, which of the given statements(s) about T, U, V and W is (are) correct?

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Question 40

Which of the given statement(s) about N, O, P and Q with respect to M is (are) correct ?

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