Question

pls answer science class 10​

Answer 1

Answer:

iii) A is true, R is false.

Explanation:

Allotropes are different physical forms of the same element, but its not necessary that they should have same chemical properties, for eg, Diamond is a bad conductor of electricity since the carbon atoms are fully bonded, while graphite has two or one electron free and hence it can conduct electricity. Hence, option iii) is correct.

Answer 2

(A) Both A and R are true and R is the correct explanation for A.

Diamond and graphite are allotropes of carbon. Reason. Some elements can have several different structural forms while in the same physical state. These differing forms are called allotropes.