S/n Question Mark Correct Answer Option A

1 The oxidation number of X in XO4 is

3- 0.5 A 5
2 A gas occupies 30.0dm3 at s.t.p. what volume will 0.5 C 102.5 dm3
3 238K IS equivalent to _________ degree Celsius 0.5 A -35
4 what is the mass of 2.3mole of sodium? 0.5 B 43g
5 P1V1 = P2V2 supports __________ 0.5 B graham's law
6 PV = nRT is the _________________ 0.5 A Ideal gas equation
7 Which of the following arrangement is in the order 0.5 B Fluorine, Boron, B
8 Which of the halogens has the lowest electropositi 0.5 C chlorine
9 why is hydrogen gas not found in the atmosphere 0.5 B it readily reacts
10 all the following metals can displace hydrogen fr 0.5 D sodium
11 why is helium preffered to hydrogen in filling ba 0.5 D diatomic
12 An element that is soft, silvery white soilid and re 0.5 B group 3
13 all the following can be deduced from the electroni 0.5 D possession of mag
14 which of the following can exhibit corrosion? 0.5 C metals below hydr
15 the most reactive halogen is 0.5 A fluorine
16 A nitogen-containing compound that dissolves in wa 0.5 C N20
17 why is Oxochlorate(I) acid used as bleach? 0.5 A it is an oxidizing
18 The bleaching action of sulphur (IV)oxide is by 0.5 B oxidation
19 what is the empirical formula of an organic comp 0.5 C CH2
20 Convert 125K to Celsius temperature 0.5 B 225
21 Hydrogen means 0.5 B water gas
22 what separation technique is commonly used to sep 0.5 B filtration
23 A mixture of sand and water can be separated using 0.5 A sand is insoluble
24 oxygen is a mixture of two Isotopes 16-O and 18-O 0.5 B 16
25 Catalyst for the production of ammonia industrially 0.5 A finely divided Iron
26 which of the following is not an halogen 0.5 D chlorine
27 the group of sulphur on the periodic table is 0.5 C 5
28 The halogen that gives starch blue black colourati 0.5 D chlorine
29 Chlorine is used in water treatment as a/an 0.5 A germicide
30 The phenomenon whereby sodium hydroxide pellets 0.5 B hydroscopy
31 0.5
32 0.5
33 0.5
34 0.5
35 0.5
36 0.5
37 0.5
38 0.5
39 0.5
40 0.5
41
42
43
44
45
46
47
48
49
50
Option B Option C Option D Option E Option F Option G
4 7 3
96.7 dm3 76.96dm3 14.0 dm3
-92 150 238
53g 83g 23g
boyle's law charles's law pressure law
Graham's equatiPressure law Boyle's equation
Lithium, Berylliu Fluorine, Nitrogen,Lithium, Nitrogen, Boron, Fluorine
iodine Fluorine bromine
it readily reacts it readily reacts w it is too small
calcium iron copper
a component of expensive inflammable and heavier
group 1 group 0 group 4
ability to form c variable oxidation boiling point of the metal
Iron only all metals electropositive metals
chlorine bromine iodine
NO NO2 NaNO3
it is a strong acidit is a weak acid it releases chlorine readily in water
reduction dehydration sulphonation
CH3 CH2O CH3O
-148 -225 148
water former water element water builder
evaporation distillation chromatography
sand has lower dsand is magnetic sand forms a precipitate with water
16.2 17.1 18
sulphur platinum vanadium oxide
bromine Iodine Feldine
4 6 2
fluorine bromone Iodine
decolourizing agantioxidant coagulating agent
deliquescence crystallization efflorescence
Option H Option I