constant. The heat given to n moles of He in order to raise the temperature from T to 2T is
In the above reaction a unknown component X on hydrolysis gives Y and methane gas identify X and Y.
1. 
52%
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(smallest value first) 
An alcohol gave Lucas test in about 5 minutes. When the alcohol was treated with hot concentrated H2SO4, it gave an alkene of molecular formula C4H8 which on ozonolysis gave C2H4O. The structure of the alcohol is:
1. CH3CH=CHCH2CH3
2. CH3CH2CH2CH2OH
3. CH3CHOHCH2CH3
4. (CH3)3C-OH
2. CH3CH2CH2CH2OH
3. CH3CHOHCH2CH3
4. (CH3)3C-OH
74%
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and 
is
The mass of potassium dichromate crystals required to oxidize 750 of 0.6 M Mohr’s salt solution is (Given, molar mass, potassium dichromate = 294, Mohr’s salt = 392)
1. 0.39 g
2. 0.37 g
3. 22.05 g
4. 2.2 g
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A quantity of hydrogen gas occupies a volume of 30.0 mL at a certain temperature and pressure. What volume would half this mass of hydrogen occupy at triple the absolute temperature if the pressure were one ninth that of the original gas?
1. 270 mL
2. 90 mL
3. 405 mL
4. 137 mL
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