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Which of the compounds above would react to take up two molecules of bromine durng bromination?
Al only
Blll only
Cl and ll only
Dll and lll only
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Question 2
jamb1999
In the diagram above, the mixture of the solids P and Q can be separated by?
Adistillation
Bfractional distillation
Ccrystallization
Dfractional crystallization
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Question 3
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Use the table above to answer this question .The least reactive element is
AW
BX
CY
DZ
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Question 4
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Use the table above to answer this question . The element that is likely to participate in covalent rather than ionic bonding is
AZ
BY
CX
DW
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Question 5
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In the diagram above, Y is a mixture of
Acalcium hydroxide and ammonium chloride
Bcalcuim hydroxide and sodium chloride
Csodium chloride and ammonuim trioxonitrate (V)
Dsodium dioxonitrate (lll) and ammouium chloride
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Question 6
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From the diagram above the mass of crystals deposited when 1 dm 3 of a saturated solution of NaCl is cooled from 80 oC to 60oC is
[Na = 23, Cl = 35.5]
A117.00 g
B58.50 g
C11.70 g
D5.85 g
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Question 7
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When the two end alkyl groups ethyl ethanoate are interchange, the compound formed is known as
Amethyl ethanoate
Bethyl propanaote
Cmethyl propanoate
Dpropyl ethanoate
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Question 8
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An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be
Aalkene
Balkanal
Calkanone
Dalkanoic acid
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Question 9
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POlyvinyl chloride is used to produce
Abread
Bpencils
Cink
Dpipes
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Question 10
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When excess ethanol is heated to 145oC in the presence of concentrated H2SO4, the product is
Aethyne
Bdiethyl sulphate
Cdiethyl ether
Dacetone
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Question 11
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Which of the following is a solvent for perfumes?
AC5H12
BC4H6
CCH3COOH
DC2H5OH
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Question 12
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2-methylprop-1-ene is an isomer of
Abut-2-ene
Bpent-1-ene
C2-methylbut-2-ene
D2-methylbut-1-ene
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Question 13
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The hydrocarbon that burns in air with a sooty flames is
AC2H6
BC3H8
CC4H10
DC6H6
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Question 14
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Which of the following metals is passive to concentrated trioxonitrate (V) acid?
AIron
BTin
CCopper
DZinc
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Question 15
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A metal that can be extracted from cassitertite is
Acacium
Bmagnesium
Ctin
Dcopper
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Question 16
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The pair of metals in the reactivity series that are usually extracted by the electrolysis of their ores is
Amagnesium and zinc
Bmagnesium and calcium
Ccopper and zinc
Dlead and calcium
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Question 17
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What properties of duralumin make it more useful than its constituent metals?
AIt is heavy with a high melting point
BIt is malleable and has high density
CIt is strong and light
DIt is hard and ductile
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Question 18
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Hydrogen is used in oxy-hydrogen flames for melting metals because it
Aevolves a lot of heat when burnt
Bcombines explosively with oxygen
Cis a very light gas
Dis a rocket fuel
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Question 19
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A pair of compounds that can be used to generate a gas which has physiological effect on human beings is
Asodium trioxonitrate (V) and calcium chloride
Bsodium dioxonitrate (III) and ammonium chloride
Csodium trioxonitrate (V) and ammonium chloride
Dsodium dioxonitrate (III) and potassium chloride
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Question 20
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The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which decolourizes acidified purple potassium tetraoxomanganate (VII) solution is
