Keep up to date with the latest news delivered direct to your Inbox.
Try Old O-Level Questions
5:36am 22nd June 2012
(Updated 5:36am 22nd June 2012)
Here are some old O-Level questions:
Question One: 10dm3 of nitrous oxide (dinitrogen monoxide) are passed over heated copper and the gas formed is collected. If the reaction goes to completion and all volumes are measured at r.t.p. (room temperature and pressure) what is the volume of the gas collected and the mass of the copper (II) oxide former? (Relative atomic mass Cu – 64). One mole of any ideal gas occupies 24dm3 at r.t.p.
Question Two: 1.0dm3 of ammonia was passed over heated copper (II) oxide (Cu0). The nitrogen formed (measured at the same temperature and pressure as the ammonia) would have a volume of:
Question Three: Rewrite two of the following sentences in order to remove any errors.
(i) Uncle Tom has agreed to share his money between you and I.
(ii) The dog had hurt it's paw.
(iii) The number of accidents on the road are increasing.
And GCSE question from now:
Question Four: The formula of magnesium chloride is MgCl2. Calculate the relative formula mass of magnesium chloride. (Relative atomic masses: Cl = 35.5; Mg – 24)
Question Five: Here is a list of numbers - 3 - 7 - 8 - 10 - 16 - 24 - 26
a) Write a multiple of six
b) Write a square number
c) Write a factor of 12
d) Write a cube number.
Question Six: Solve the equation
x - 4 2x + 1
What happens to a liquid during its separation from a mixture by distillation?
a) Condensing followed by evaporating
b) Evaporating followed by condensing
c) Evaporating followed by freezing
(Answers: Question 1. Volume = 10dm3, Mass = 33.3g. Question 2: b). Question 3: you and me; its; is increasing. Question 4: (2 x 35.5) = 24 = 95g. Question 5: a) 24 b) 16 c) 3 d)8. Question 6: 0.81 Question 7: Evaporating followed by condensing.)5:36am 22nd June 2012
Share This StoryTweet
Government delays its air quality plan days before publication
A request by the Government to delay a report on air pollution until after the General Election has been described as "far from acceptable".
Repertory theatre for the on-demand generation
It's an acting system that has largely died out over the last decade or so but a Manchester group is setting out to revive repertory theatre for the on-demand generation.
'Untreatable' superbug infections on the rise
The number of cases of an "almost untreatable" superbug are on the rise, according to NHS data.
Cheapest ever mortgage rate of 0.89% on offer to home buyers
A building society is launching Britain's cheapest ever mortgage deal with a rate of 0.89% as competition between lenders intensifies.
BREAKING: Person rescued from cliff
Cornwall News: They got stuck when the tide came in at Portwrinkle
Three Mobile apologises for network glitch that stopped calls and texts
National News: Three Mobile has apologised after customers were not able to send texts or make phone calls.
Erin Moran, who played Joanie Cunningham in Happy Days, dies aged 56
Showbiz News: Erin Moran, who played Joanie Cunningham in the sitcoms Happy Days and Joanie Loves Chachi, has died aged 56.
EU Brexit negotiator says PM's snap election 'will not strengthen hand' in talks
World News: The European Parliament's Brexit co-ordinator has dismissed the Prime Minister's claim that a snap election will strengthen her position in EU exit negotiations.
Ilie Nastase aims abuse at Britain's Johanna Konta at Fed Cup
Sports News: Former world number one tennis player Ilie Nastase has been barred from Romania's Fed Cup semi-final tie after apparently aiming abuse at the British team.
Dinosaur egg fossils dating from 70 million years ago found in China
Strange News: Fossilised dinosaur eggs from 70 million years ago have been unearthed on a building site in China.
VIDEO: Domestic Violence Victims Urged Not to Cover Up
National News: Hard-hitting video shows victim trying to disguise her injuries with make up