Question

P
oMPote Dan on the pre
the products containing
mand to put a ban on them?
combination
(b) Consider
potential d
in an accident and its conter
in cover began melting and
was called to see if acid actual
ee if the river water
) Se
the acid ran over them.
aerosols. What are aerosols? Why is there a demand to
SECTION-C
25. A road tanker carrying an acid was involved in an ac
spilled on the road. At the side of the road iron drain cove
fizzing as the acid ran over them. A specialist was called
leaked into the nearby river.
(a) Explain how specialist could carry out sample test
contains some acid or not.
(6) Suggest a better report name for the word 'melting
(c) Explain why the drain covers began fizzing as the acidro
OR
A metal carbonate X on reacting with an acid gives a gas wh
through a solution Y gives the carbonate back. On the othe
is obtained at anode during electrolysis of brine is passed
compound Z, used for disinfecting drinking water. Identify X Y
26. Give reasons for the following:
(a) Element carbon forms compounds mainly by covalent bon
(b) Diamond has a high melting point.
(c) Graphite is a good conductor of electricity.
(d) Acetylene burns with a sooty flame.
(e) Kerosene does not decolourise bromine water while cooki
gives a gas which when passed
On the other hand, a gas G that
passed on dry Y. It gives a
Find out!
given in
(a) Effec
in th
ISO
(b) Cu
(0) Po
(d) Pc
(e)
ine water while cooking oils do​

Answer 1

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Answer 2

Answer:

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