The scientist who discovered the zig-zag movement of gas molecules is
Brownian
Dalton
Gay Lussac
Graham
Newton
Correct answer is A
No explanation has been provided for this answer.
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
HOCH2 – CH2OH
H2C –C =C– CH3
H3C – HC = CH2
H2C = CH2
H3C – C =CH
Correct answer is A
No explanation has been provided for this answer.
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\(_3\)
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.