-
mnsoomro
Posts
Deuterium reacts with oxygen to form________________?
A. Hard water B. Heavy water C. Soft water D. Water gas Submitted by :- Jamil Ahmed
Which discovery caused a revision in the periodic law as stated by Mendeleev ?
A. Location of nucleus by Rutherford B. Atomic number by Moseley C. X-rays by Roentgen D. Natural radioactivity by Henry…
Which one of the following is not a periodic property ?
A. Melting point of elements B. Boiling point of elements C. Ionization energy of elements D. Coordination number of ions…
The complete reduction carboxylic acid results in the formation of________________?
A. Alkyne B. Alkene C. Alkane D. Alcohol Submitted by :- Jamil Ahmed
Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces_______________?
A. CO2 C. Ester B. Alkane …
The test which is used for the identification of amino-acids is_________________?
A. Ninhydrin test B. Molisch test C. Biuretic test D. Benedict test Submitted by :- Jamil Ahmed
The organic acid that does not has COOH group is___________________?
A. phthalic acid B. carbolic acid C. Maleic acid D. Succinic acid Submitted by :- Jamil Ahmed
In the formation of Zwitter ions proton goes from____________________?
A. Carboxyl to amino group B. Amino to carboxyl group C. Amino group only D. Carboxyl group only Submitted by…
The common thing in phthalic acid and oxalic acid is that both are_________________?
A. Aromatic B. Dicarboxylic C. Hydrocarbons D. Strong acids Submitted by :- Jamil Ahmed
When – COOH is attached directly to the benzene ring the acid is called__________________?
A. Aliphatic B. Alicyclic C. Carboxylic D. Aromatic Submitted by :- Jamil Ahmed