MCQsFoundry.com brings to you 500+ 9th Standard Chemistry Mcqs which are new and latest. These Mcqs are never published on internet so far. For full information about all PPSC / FPSC / CSS / PMS latest jobs visit theiteducation.com
| 01 | 9th Class Chemistry Mcqs Chapter 01 | 02 | 9th Class Chemistry Mcqs Chapter 02 |
| 03 | 9th Class Chemistry Mcqs Chapter 03 | 04 | 9th Class Chemistry Mcqs Chapter 04 |
| 05 | 9th Class Chemistry Mcqs Chapter 05 | 06 | 9th Class Chemistry Mcqs Chapter 06 |
| 07 | 9th Class Chemistry Mcqs Chapter 07 | 08 | 9th Class Chemistry Mcqs Chapter 08 |
| 09 | 9th Class Chemistry Mcqs Chapter 09 | 10 | 9th Class Chemistry Mcqs Chapter 10 |
| 11 | 9th Class Chemistry Mcqs Chapter 11 | 12 | 9th Class Chemistry Mcqs Chapter 12 |
CHAPTER NO 8
Chemical Reactivity
Encircle the most appropriate answer among the following options
1 Non-metals are essential
(a) for the maintenance
(b) for the existence
(c) for the safety of life
(d) all of these
2 It has the highest percentage in earth’s crust and oceans.
(a) calcium
(b) carbon
(c) oxygen
(d) nitrogen
3 The electronegative and non-metallic character from top to bottom
(a) increases
(b) decreases
(c) remain same
(d) stable
4 Chlorine only reacts with methane in
(a) darkness
(b) sunlight
(c) yellow light
(d) screened light
5 Chlorine has colour:
(a) pale yellow
(b) greenish yellow
(c) reddish brown
(d) purple black
6 These are highly oxidizing agents
(a) alkali metals
(b) alkaline earth metals
(c) transition metals
(d) halogens
7 The highest electronegative element in periodic table is
(a) fluorine
(b) chlorine
(c) bromine
(d) iodine
8 The electronic configuration of halogens is
(a) ns2 np5
(b) ns2np3
(c) ns3np5
(d) ns2 np2
9 Non-metals are electronegative in nature and form oxides.
(a) acidic
(b) basic
(c) neutral
(d) suboxide
10 It is used to make jewelry items because of its unique characteristics like colour beauty, strength, flexibility and resistance to tarnish.
(a) gold
(b) platinum
(c) silver
(d) copper
11 White gold is an alloy of
(a) gold + palladium + zinc
(b) palladium + silver + nickel
(c) gold + silver + copper
(d) palladium + nickel + zinc
12 The alkaline earth metals are smaller in size and have more
(a) ionization energy
(b) electron affinity
(c) nuclear change
(d) electropositive
13 All alkali metals have the largest size and the lowest in their respective periods.
(a) electro negativity
(b) ionization energy
(c) electron affinity
(d) electro positivity
14 Metals have the tendency to lose their valence electron. This property of a metal is termed as
(a) electro negativity
(b) electro positivity
(c) electron affinity
(d) ionization power
15 Copper, mercury, silver and gold are the examples of metals
(a) very reactive
(b) moderately
(c) least reactive
(d) none of these
16 Cation in formed, when an element – electron to its outermost shell
(a) loses
(b) gains
(c) donates
(d) shares
17 Metals which are easily oxidized are said
(a) negative metals
(b) state metals
(c) reactive metals
(d) non-reactive metals
18 A metal in a compound always exists in which oxidation sate
(a) negative
(b) positive
(c) neutral
(d) zero
19 Ionization energy of sodium is less than
(a) aluminum
(b) magnesium
(c) copper
(d) all of these
20 All metals are solids except
(a) sodium
(b) magnesium
(c) mercury
(d) gold
21 The most valuable metal among the following is
(a) Gold
(b) Uranium
(c) Osmium
(d) Rubidium
22 The heaviest metal is
(a) Uranium
(b) Gold
(c) Osmium
(d) Calcium
23 Lithium has density
(a) 0.53gcm-3
(b) 1.53gcm -3
(c) 15.3gcm -3
(d) 3.5gcm -3
24 Mark which one is non-metal?
(a) Sodium
(b) Calcium
(c) Nitrogen
(d) Mercury
25 Which one of the following will not react with HCI?
(a) Carbon
(b) Silver
(c) Zinc
(d) Copper
26 Sodium does not react with
(a) Carbon
(b) Nitrogen
(c) Hydrogen
(d) Both a and b
27 Which metal burns with golden yellow flame
(a) Calcium
(b) Barium
(c) Sodium
(d) Potassium
28 Which metal is used in Thermite process to ignite aluminum powder
(a) Na
(b) Mg
(c) Ca
(d) Be
29 Silver is get tarnished by
(a) Atmosphere oxygen
(b) Nitrogen
(c) Hydrogen sulphide
(d) Carbon dioxide
30 Which metal is used for making mirrors?
(a) Lead
(b) Iron
(c) Silver
(d) Lithium
31 Which one of the following metal has yellow colour
(a) Lead
(b) Gold
(c) Iron
(d) Potassium
32 Gold is always alloyed with one, among the following metals
(a) Sodium
(b) Mercury
(c) Copper
(d) Calcium
33 Sodium is used for the refining of which metal
(a) U
(b) Zn
(c) Ti
(d) Zr
34 How many series of d-block elements are there in the periodic
(a) Three
(b) Four
(c) Five
(d) Two
35 Three transition elements Cu, Ag and Au constitute group number
(a) 9
(b) 10
(c) 11
(d) 12
36 The least electronegative element among the halogens is
(a) Fluorine
(b) Chlorine
(c) Bromine
(d) Iodine
37 Which of the following halogen has pale yellow colour?
(a) F2
(b) Cl2
(c) Br2
(d) I2
38 Which one of the following makes covalent bond with halogens
(a) Na
(b) K
(c) O
(d) Mg
39 Identify among the following which one is semimetal
(a) Lead
(b) Zinc
(c) Silicon
(d) Galium
40 The general electronic valence shell configuration of alkali metals is
(a) ns2
(b) ns1
(c) ns2, np1
(d) ns2, np2
41 Hydrogen is released when water reacts with
(a) Na
(b) Mg
(c) K
(d) All of them
42 Which metal releases electron from its outermost shell the most easily
(a) Na
(b) K
(c) Mg
(d) Ca
43 Which one among the halogens has least affinity with hydrogen?
(a) F2
(b) CL2
(c) Br2
(d) I2
44 In diffused sun lights chlorine reacts with methane to form
(a) CH3CL
(b) CH2CL2
(c) CCL4
(d) All of above
45 In the earth crust the highest %age of oxygen is
(a) 47%
(b) 86%
(c) 90%
(d) 24%
46 The age of oxygen in oceans is:
(a) 47%
(b) 86%
(c) 90%
(d) 24%
47 The %age of oxygens in air is:
(a) 21%
(b) 24%
(c) 26%
(d) 30%
48 Which one of the following will form amphoteric oxides?
(a) Na
(b) Na
(c) Si |
(d) S
49 Which halogen reacts with water in dark and cold state
(a) F2
(b) Cl2
(c) Br2
(d) I2
50 Select the least reactive metal among the following
(a) Gold
(b) Zinc
(c) Iron
(d) Tin