A
B
C
D
Correct answer is B
Alkanols have the formula \(C_{n}H_{2n+1}OH\).
⇒ \( 12n + (1\times (2n+1)) + 16.0 + 1.0 = 60\)
= (14n +18 = 60\)
\(n = \frac{60-18}{14} = \frac{42}{14} = 3\)
Hence, the alkanol is gotten by putting n=3,
=\(C_{3}H_{7}OH\)
excessive ultraviolet light from the sun to reach the earth surface
excessive release of infrared light from the sun to the earth surface
corrosive effect of the chemicals on humans and animals
acidic effect of chemicals on humans
Correct answer is A
Chlorofluorocarbons are harmful to environment and living beings because it increases greenhouse gases in the environment which results in forming holes in the ozone layer.. And if this happens it will cause to an increase in the ultraviolet rays exposer, and which will make the earth's surface much hotter than usual.
The IUPAC name for the compound \(ClCH_{2}CH_{2}OH\) is
1- chloropropanol
2-chloropropanol
1-chloroethanol
2-chloroethanol
Correct answer is D
The parent chain for the compound is \(C_{2}H_{5}OH\) in which one of the hydrogen atoms is replaced by the Cl atom. Giving the chlorine the highest number while naming, we have 2- chloroethanol.
sucrose
maltose
galactose
mannose
Correct answer is B
A maltose is a dissacharide formed from two units of glucose.
Fats and oils can be obtained from any of the following sources except
paraffin oil
animals
groundnuts
palm kernel
Correct answer is A
Paraffin oil is gotten from petroleum distillation and can't be a source of fats and oil.
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