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Free trb questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. The first elements of rare earth metals is
(a)
Actinium
(b)
Cerium
(c)
Lanthanum
(d)
Uranium
2. The highest metal is
(a)
Na
(b)
Ca
(c)
Mg
(d)
Li
3. The general formula of carboxylic acid is
(a)
RCOOH
(b)
R-COOH
(c)
R-OH
(d)
R-CHO
4. The oxide ore of iron is
(a)
Cinnabar
(b)
Haematite
(c)
Pyrolusite
(d)
Bauxite
5. Hydrogen sulphide gas has
(a)
Pungent smell
(b)
Smell
(c)
Fruity smell0
(d)
Rotten egg smell
6. Nitric acid is manufactured by
(a)
Haber process
(b)
Contact process
(c)
Solvay process
(d)
Ostwald’s process
7. The element with the highest electrical conductivity is
(a)
Silver
(b)
Gold
(c)
Copper
(d)
Aluminium
8. The catalyst used in the hydrogenation of oils is
(a)
Fe
(b)
V
2
O
5
(c)
Ni
(d)
Pt
9. Ethanoic acid is the IUPAC name of
(a)
Acetic acid
(b)
Formic acid
(c)
Propionic acid
(d)
Oxalic acid
10. Which one of the following is formed by dissolution of base or acid in water?
(a)
Endothermic
(b)
Monothermic
(c)
Exothermic
(d)
None of these
