se the equivalent fraction of
-5)+(-7 equal to:
first
920
12345
d) 12
c) A is true but R is false
d) A is false but R is true.
9) Assertion; In neutralization reaction, heat is always produced, or evolved
Reason; The evolved heat raises the
temperature of the reaction mixture.
10) Assertion; Dark coloured objects absorb more heat than the light coloured object
Reason; We feel more comfortable in light coloured clothes in the
summer.
SECTION B
11) Distinguish between a parasite and a saprotroph
12) Discuss why wearing more layers of clothing during winter keeps us warmer than
just one thick piece of clothing.
13) Give two examples each of conductors and insulators of heat.
14) State the differences between acids and bases.
15) How d, you test the presence of starch in leaves?
16) Is the distilled water acidic/basic/neutral? How would you verify it?
SECTION C
assertion assertion in neutralization reaction it is our President or avoid reason the award heat Rises the temperature of the reaction mixture ​