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MHT CET 2017 :: Chemistry :: General questions




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26.

Which among the following compounds does not act as a reducing agent?


A) $H_{2}O$

B) $H_{2}$

C) $H_{2}Se$

D) $H_{2}Te$



27.

Identify the weakest  oxidising  agent among the following 


A) $Li^{+}$

B) $Na^{+}$

C) $Cdi^{2+}$

D) $l_{2}$



28.

Identify the compound , in which phosphrous exists in the oxidation state of +1.


A) phosphonic acid $(H_{3}PO_{3})$

B) Phosphinic acid $(H_{3}PO_{2})$

C) Pyrophosphrous acid $(H_{4}P_{2}O_{5})$

D) Orthophosphoric acid ($(H_{3}PO_{4})$



29.

The  molality of solution containing 15.20 g of urea, (molar nass= 60) dissolved in 150g of water is 


A) 1.689 mol $kg^{-1}$

B) 0.1689 mol $kg^{-1}$

C) 0.5922 mol $kg^{-1}$

D) 10.2533 mol $kg^{-1}$



30.

 What type of sugar molecule is present in DNA?


A) D-3 deoxyribose

B) D- ribose

C) D-2-deoxyribose

D) D- glucopyranose



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