Al
Mg
Ag
Mn
Correct answer is A
No explanation has been provided for this answer.
bubbling it through concentrated H2SO2
bubbling it through water and then passing it through calcium oxide
passing it directly through calcium oxide
passing it directly through calcium chloride
Correct answer is C
No explanation has been provided for this answer.
ii and iii
i and iii
ii and iv
ii only
Correct answer is C
No explanation has been provided for this answer.
In which of the following pairs of element is allotropy exhibited by each element?
Phosphorus and hydrogen
Oxygen and chlorine
Sulphur and nitrogen
Oxygen and sulphur
Correct answer is D
No explanation has been provided for this answer.
cold water
sodium hydroxide solution
iodine solution
sodium trioxocarbonate (IV) solution
Correct answer is B
No explanation has been provided for this answer.