CH
CH3
CH4
C2H2
C2H6
Correct answer is B
Relative No of Moles for Carbon = 79.2% ÷ 12 = 6.6
Relative No of Moles for Hydrogen = 20.8% ÷ 1 = 20.8
Ratio of Moles = Carbon 6.6 ÷ 6.6 = 1 Hydrogen = 20.8 ÷ 6.6 ~ 3
EMPIRICAL FORMULA IS CH\(_3\)
Which of the following non-metals reacts most readily with metals?
Carbon
Chlorine
Nitrogen
Phosphorus
Sulphur
Correct answer is B
No explanation has been provided for this answer.
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
alkanal
alkane
alkanoate
alkene
alkyne
Correct answer is B
Alkanes have the general formula of CnH2n+2 where n is the number of carbon atoms.
Alkenes have the general formula CnH2n.
The general formula for Alkynes is CnH2n-2.
The process involved in the decomposition of sugar by an enzyme is called
dehydration
esterification
fermentation
polymerization
saponification
Correct answer is C
No explanation has been provided for this answer.
Which of the following equations is NOT balanced?
CH4(g) + 202(9) → CO2(g) + 2H2O(g)
CU(S) + HNO3(aq) → Cu(NO3)2(aq) + 4H2O(I) + NO(g)
2KCIO3(s) → 2KCI(s)+ 3O2(g)
NaH(s) + H2O(1) → NaOH(aq) +H2(g)
Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCl(aq)
Correct answer is B
No explanation has been provided for this answer.