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26. Which one of the following compounds will give addition reactions? (NTSE Chhattisgarh, Stage-I, 2014-15)
CH4
C2H6
C2H4
C3H8
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27. The functional group of carboxylic acid is (NTSE Chhattisgarh, Stage-I, 2014-15)
-OH
-CHO
28. Identify the final product Z in the series of chemical reactions (NTSE Odisha, Stage-I, 2014-15)
CH3COOH
CH3CH2NHOH
CH3CONH2
CH3CHO
29. The action of cleaning of oily dirt by soap is based on (NTSE Rajasthan, Stage-I, 2014-15) (NTSE Andhra Pradesh, Stage-I, 2016-17)
Solubility in water
Hydrophilic property
Hydrophobic property
Presence of both hydrophilic and hydrophobic groups
30. A hydrocarbon has a molecular formula as C6H12. It does not react with hydrogen to give C6H14 nor does it react with chlorine to give C6H12C12. The hydrocarbon C6H12 is (a) A saturated hydrocarbon (b) An unsaturated hydrocarbon (c) An open chain hydrocarbon (d) A cyclo-alkane
(a) & (b)
(c) & (d)
(d) & (b)
(a) & (d)
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