Question

precipitation occurs in various forms for
and_
a catalyst
(decrease / increase) the rate of a reaction without itself undergoing any change.
An oxidation reaction involves the
_(additional / removal) of oxygen.
Pusting occurs only in the presence of Oggen (oxygen/hydrogen) and mais livre(dry surface / moisture).
Carbon dioxide can be obtained from a carbonate by adding
_(an acid / any liquid).
When carbon dioxide is bubbled through limewater, the resulting solution is
(clear / turbid).
Drizzle, dew, snow, hail, and frost are all different forms of
(precipitation / rain)
A new substance is formed during a
change.
themselves during a chemical change.
Reactions that can be proceeding in either direction have a
arrow.
a thermal decomposition reaction, that compound breaks up due to
Thalance a chemical equatio, we should count the number of
of each kind on both sides of the
arrow, and then use proper
to make the number of
of each kind equal.
gas can cause acid rain.
34.
Every nine parts of water by weight contain
Every
parts by weight of oxygen.
35. Dust particles help in the
_ of water evapour present in the air.
gas is used in filling weather observations balloons.
Solid carbon dioxide is called
& Oxygen is prepared in the laboratory by heating
For welding metals, the gases used are
and
Electric light bulbs filled with
order to protect the
form chemical reaction.
The amount of water vapour in the air is called
gas is evolved when carbonates treated with acid.
their fuel in c e
gas can cause
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Answer 1

Answer:

Exhaustive methylation: The process of alkylation with methyl groups until all possible methylations have been achieved. In the Hofmann elimination reaction sequence, exhaustive methylation (shown in red) converts an amine to an alkylammonium salt prior to E2 elimination.

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