Chemistry 1488 MCQs [All-Courses]

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Which one exhibits aldol condensation____________________?

A HCHO

B C6H5CHO

C Cl3CCHO

D CH3COCH3

Review Detailed Answer

Correct Answer: CH3COCH3

The absolute value of charge on electron was determined by ________ ?

A J.J.Thomson

B Chadwick

C Rutherford

D Robert Millikan

Review Detailed Answer

Correct Answer: Robert Millikan

Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?

A Tartaric acid

B Propanoic acid

C Lactic acid

D Valeric acid

Review Detailed Answer

Correct Answer: Lactic acid

What is the molecular weight of Ammonia (NH3) ________ ?

A 17.031 g/mol

B 18.031 g/mol

C 19.031 g/mol

D 27.033 g/mol

Review Detailed Answer

Correct Answer: 17.031 g/mol

Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

A PdCl2

B Cu2Cl2

C CuCl2

D PbCl2

Review Detailed Answer

Correct Answer: CuCl2

Sum of protons and neutrons in an atom gives off _________ ?

A Nucleon numbera

B Mass number

C Atomic number

D Both A and B

Review Detailed Answer

Correct Answer: Both A and B

Aldehyde and ketone have same general formula for homologous series_________________?

A CnH2nO2n

B CnH2n

C CnH2nO

D CnH2nOn+1

Review Detailed Answer

Correct Answer: CnH2n

Which among the following is not a property of Ionic bond _________?

A Sharing of electrons

B Transfer of electrons

C Losing of electrons

D Gain of electrons

Review Detailed Answer

Correct Answer: Sharing of electrons

On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

A pink

B black

C yellow

D brick red

Review Detailed Answer

Correct Answer: brick red

Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

A Zeolites

B Sulphonides

C Lime

D Nitrates

Review Detailed Answer

Correct Answer: Zeolites

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Chemistry 1488 MCQs [All-Courses]

All Topics 1488

All Topics 1488

Which one exhibits aldol condensation____________________?

The absolute value of charge on electron was determined by ________ ?

Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?

What is the molecular weight of Ammonia (NH3) ________ ?

Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

Sum of protons and neutrons in an atom gives off _________ ?

Aldehyde and ketone have same general formula for homologous series_________________?

Which among the following is not a property of Ionic bond _________?

On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?