ঢাকা বিশ্ববিদ্যালয়
সালঃ 2015
ক ইউনিট
1-butyl-3,4-dimethyl benzene
1,2 -methyl-4-butyl benzene
1,2,4 -dimethyl butyl benzene
methyl butyl benzene
Ethanol
Ethanoic acid
Water
Ammonia
Pipette and beaker
Burette and reagent bottle
Pipette and burette
Graduated pipette and conical flask
NaOH (aq) + HCl (aq)
Na+(aq) + Cl-(aq)
OH+(aq) + Cl- (aq)
An enzyme
A non-caloric sweetener
An amino acid
An anti -oxidant
An enzyme
A non - caloric sweetener
An amino acid
An anti-oxidant
UV-radiation
CFC -12
Cl
CO
Super Saturated
Unsaturated
Saturated
All of them
Nitrogen
phosphorus
sulphur
Oxygen
9,2
8,4
10,1
10,2
Catalyst Only
Temperature only
Prssure only
Temperature ,pressure and cataslyst
Butan -1 -01
Butan -2 -01
2 - methy lpropan -1 -01
2- methylpropan -2-01
Benzene diazonium chloride
Chlorobenzene
Nitrobenzene
phenol
Methane
Ethane
Butane
Pentane
Copper
Chromium
Sodium
Calciam
Sn is oxidized
Cl is oxidized
Fe is oxidized
Cl is reduced
Na
Cl2
H2
NaOH