Detergents are more advantageous than soaps in hard water districts because
on treatment with hard water they either form soluble calcium salts or do not react with calcium ion
on treatment with hard water they form soluble calcium salts
on treatment with hard water they form sodium salts
on treatment with hard water they are converted into soaps
on treatment with hard water they form more lather than soaps does
Correct answer is A
No explanation has been provided for this answer.
N2O
NO
NO2
NaNO3
NH3
Correct answer is C
No explanation has been provided for this answer.
Cu(OH)2
CuSo4.5H2O
(NH4)2SO4
Cu(NH3)4(OH)2
CuSO4.(NH4)2SO4.2H2O
Correct answer is D
\(CuSO_4+2NH_4OH→(NH_4)_2SO_4+Cu(OH)_2\)(pale−blue)
The pale blue precipitate of copper hydroxide dissolves in excess of ammonium hydroxide forming tetraamine copper [II] sulphate, an azure blue(deep blue) soluble complex salt.
\(Cu(OH)_2+(NH_4)_2SO_4+2NH_4OH→[Cu(NH_3)_4]SO_4+4H_2O\)
The difference between the closure of the books of a branch and those of a separate company is that?
There is retained earnings account on the branch books
The revenue and expenses account is closed to branch current account
There is no retained earnings account on the branch
The revenue and expenses account is not closed to the home office current account
Correct answer is A
No explanation has been provided for this answer.
Stock account is debited
Purchases account is debited
Stock account is credited
Mark-up account is debited
Correct answer is B
No explanation has been provided for this answer.