Question

4. In which block of the modern periodic table are the non metals found?
a) s block b) d-block
c) p-block
d) f-block
S. If a chemical reaction takes place in the presence of heat, then the sign
is written over the arrow.
a)s-block
b)d-block
c) p-block
d) f-block​

Answer 1

Answer:

b)d-block

Explanation:

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