When the end alkyl groups of ethyl ethanoate are interchanged, the compound formed is
propylmethanoate
ethylpropanoate
methyl ethanoate
methyl propanoate
Correct answer is D
No explanation has been provided for this answer.
An element Z contains 80% of \(^{16} _8\)Z and 20% of \(^{18} _8\)Z. Its relative atomic mass is
16.2
17.6
16.0
16.4
Correct answer is D
R.A.M of Z = \(16(\frac{80}{100}) + 18(\frac{20}{100})\)
= \(12.8 + 3.6\)
= 16.4
Which of the following items are current assets?
Stock, bills receivable, cash and debtors
Stock, bill payable, cash and debtors
Stock, bad debt, bills receivable and cash
Stock, work-in-progress, cash and bills payable
Correct answer is A
Current assets include cash and other assets that are expected to be converted to cash within a year. Option A ''Stock, bills receivable, cash and debtors'' is correct.
- Stock are goods bought for the purpose of resale
- Bills receivable are incurred as a result of credit sales
- Cash is the available money at hand
- A debtor is a person, company, or other entity that owes money.
How many electrons will be found in the nucleus of an atom with mass number 23 and 17 neutrons?
none
6
7
8
Correct answer is A
Electrons are found in the orbit of the atom. They revolve around the nucleus. There's no electron found in the nucleus of an atom.
Al\(^{3+}\), Cl\(^-\)
Hg\(^+\), SO\(_4 ^{2-}\)
Pb\(^{2+}\), Cl\(^-\)
Ag\(^+\), SO\(_4 ^{2-}\)
Correct answer is C
No explanation has been provided for this answer.