The periodic table is an arrangement of elements according to their?
Oxidation number
Atomic number
Mass number
Number of neutrons
Correct answer is B
Elements are arranged in order of increasing atomic number
Which of the following will give a precipitate with an aqueous solution of copper (I) chloride?
But-2-ene
But-1-ene
But-2-yne
But-1-yne
Correct answer is D
No explanation has been provided for this answer.
A secondary alkanol can be oxidized to give an?
alkanone
alkyne
alkanoic acid
alkanal
Correct answer is A
Secondary alkanols (alcohols) can be oxidised to alkanones (ketones)
Petroleum is a non-renewable source of energy because it
is formed naturally
is cheap
can be recycled after use
cannot be regenerated once used up
Correct answer is D
No explanation has been provided for this answer.
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,
=\(C_{3}H_{7}OH\)
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