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WorksheetsPractical Class N (D)
Total questions: 20
Worksheet time: 37mins
Tollen’s reagent contains:
Ag
Cu+
Cu2+
Ag+
Fehling’s solution contains: a)
b) c) d)
Ag
Cu+
Cu2+
Ag+
Glucose reacts with Tollen’s reagent to give precipitate which is known as
Silver mirror
Gold mirror
Blood red precipitate
White precipitate
Glucose on treatment with conc. H2SO4 will generate:
Furfural
Furan
5-Hydroxymethylfurfural
5-Methylfurfural
In Mulliken-Barker’s test, the aromatic nitro group is reduced to:
Amine
amide
nitroso
hydroxylamine
Aromatic nitro group can be reduced to the amino group using:
Zn/NH4Cl
Zn/AcOH
Sn/ conc. HCl
Na/EtOH
Role of conc. H2SO4 in Molisch test for carbohydrates:
dehydrating agent
dye-forming agent
oxidant
dehydrating agent and oxidant
In litmus paper test of p-nitrophenol
Red litmus turns blue
Blue litmus turns red
No change in blue and red litmus
both blue and red litmus change colour
Hydroquinone is
not soluble in water
soluble in water
soluble in hexane
not soluble in ethanol
Phenol reacts with sodium to generate
O2
CO2
H2O
H2
Sodium fusion extract prepared from p-bromoacetanilide will contain
NaBr
NaCN
NaBr and NaCN
NaSCN
Benzoic acid and cinnamic acid can be distinguished by
NaHCO3 test
Litmus test
Ignition test
Unsaturation test
Conversion of nitrobenzene into m-dinitrobenzene is an example of
Aromatic nucleophilic substitution
Aromatic electrophilic substitution
Nucleophilic substitution
Elimination reaction
Phthalic anhydride reacts with urea to generate:
Thiourea
Phthalic acid
Phthalimide
Uric acid
The spin only magnetic moment of complex {K3 [Cr(C2O4)3].3H2O} is
4.87
2.80
3.87
No one is coorect
Number of geometrical isomers possible for the complex {K3 [Cr(C2O4)3].3H2O} are
1
2
3
No one is coorect
For the preparation of 2.5 g {[Zn(acac)2].H2O} complex the amount of ZnSO4.7H2O needed is
2.5 g
2.69 g
3.1 g
No any answer correct
In the preparation of {K3[Cr(C2O4)3].3H2O} complex the slow addition of K2Cr2O7 help to avoid
An exothermic reaction
Sudden release of CO2
An exothermic reaction and Sudden release of CO2
No one is correct
The properties of a compound is same as it constituent ions. The compound would be a
Coordination polymer
Coordination complex
Double salt
All of the options are correct
The structure of {[Zn(acac)2].H2O} complex is
Square planer
Tetrahedral
Octahedral
None of the options are correct
