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Chemistry Class 12 Chapter 16
Environmental Chemistry
Test 10
1.
Which of the following do not perform aldol condensation reaction?
Formaldehyde
Propionic aldehyde
Acetaldehyde
Benzaldehyde
2.
On heating aldehyde with fehiling solution we get precipitate of colour?
Pink
White
Red
Yellow
3.
For industrial preparation of CH3CHO catalytic promoter is?
PdCl
2
CuCl
2
Cu
2
Cl
2
PbCl
2
4.
Formaldehyde condenses with phenol in presence of dilute H2SO4 to yield?
Urotropine
Bakelite
Aniline formaldehyde plastic
Nylon 6,6
5.
Which is not the use of acetaldehyde?
Antiseptic inhalant
Formation of throat lozenges
Formation of phenolic resign
Formation of looking glass
6.
Which is not the use of formaldehyde?
An making acetic acid
In making throat lozenges
In making medicine urotropine
In silver mirror
7.
Oxidation of P
o
gives?
Ester
Alkene then -COOH
Ketone
Aldehyde
8.
Ketones are less reactive from aldehyde due to?
Alkyl groups are electron donating
Both
Steric hindrance
None
9.
Which of the following compounds has the empirical formula CH
2
O and reacts with sodium hydroxide?
Phenol
Acetic acid
Methanoic acid
Carbonic acid
10.
Formaldehyde are lactose are combined to produce throat lozenges named as?
Formalacstose
Lactomint
Formamint
Aldomint
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