Question

13. Assertion (A) : Alloys are commonly used in electrical heating devices
like electric iron and heater.
Reason (R) : Resistivity of an alloy is generally higher than that of its
constituent metals but the alloys have low melting points then their
constituent metals.
14. Assertion (A): Following are the members of a homologous series :
CH3OH, CH3CH2OH, CH3CH2CH2OH
Reason (R) : A series of compounds with same functional group but
differing by - CH2, - unit is called a homologous series.
Please answer both the questions.​

Answer 1

Answer:

13. A is correct but R is false.

14. A is false but R is false.

Explanation:

13. RESISTIVITY OF ALLOYS ARE HIGHER THAN THAT OF METALS AND ALLOYS HAVE HIGH MELTING POINT COMPARED TO METALS INDUVIDUALLY.

14. THEY DIFFER BY -CH2 UNITS BUT IN THE FOLLOWING WAY

CH3OH

+CH2 UNITS

--------------------------

C2H5OH AND FURTHER IT GOES ON LIKE C3OH7 AND C4OH9 ETC.....

Answer 2

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