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MCQ's Test For ECAT Chemistry Chapter 16 The Halogens and The Noble Gases
Try The MCQ's Test For ECAT Chemistry Chapter 16 The Halogens and The Noble Gases
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 16 The Halogens and The Noble Gases
00:00
Question # 1
Which noble gas is used in mixture used for breathing by divers?
Question # 2
Which halogen occurs naturally in a positive oxidation state?
Question # 3
Which has complete valence shell?
Question # 4
Which is present as a result of radioactive decay on earth?
Question # 5
Radioactive element in halogens is
Question # 6
The compound with cyclic hexamer is
Question # 7
Colour of chlorine is
Question # 8
Halogens are called.
Question # 9
The available chlorine is bleaching power is
Question # 10
Which is used in arc welding and cutting?
Question # 11
Perchloric acid can be stored in solution form
Question # 12
Half life of most stable isotope of astatine is
Question # 13
Half life period of astatine is
Question # 14
Which of the following hydrogen halide is the weakest acid in solution?
Question # 15
Noble gases in the atmosphere are
Question # 16
Bleaching powder may be produced by passing chlorine over
Question # 17
Colour of Iodine is
Question # 18
The most reactive elements are
Question # 19
The most reactive elements are:
Question # 20
Used in tooth pastes is
Question # 21
Which is volatile liquid?
Question # 22
Astatine belongs to group:
Question # 23
A property which differs fluorine from the other halogens?
Question # 24
Colour of fluorine gas is
Question # 25
The strongest acid is
Question # 26
Which is used as cooling medium in nuclear reactors?
Question # 27
Which halogen has maximum Van-der Waal's forces?
Question # 28
Oxidation state of fluorine is
Question # 29
Which is the strongest acid?
Question # 30
Gaseous HF exists in the form of
Top Scorers Of ECAT Chemistry Chapter 16 The Halogens and The Noble Gases MCQ`s Test
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A Arian Ahmed 08 - Mar - 2024 00 Min 03 Sec 120/120 -
J Jiya Khan 27 - Feb - 2024 02 Min 27 Sec 120/120 -
N Naima Kausar 13 - Mar - 2023 03 Min 10 Sec 120/120 -
T TETO Teto 13 - Mar - 2023 01 Min 24 Sec 115/120 -
T Tasawar Hussain 27 - May - 2024 02 Min 04 Sec 115/120 -
N Nasreen Sardar 10 - Jun - 2023 05 Min 14 Sec 115/120 -
K Khudeeja Iftikhar 12 - Mar - 2024 02 Min 57 Sec 110/120 -
K Khan Abdullah Asghar Mahmood 28 - Feb - 2024 03 Min 20 Sec 110/120 -
M Muhammad Sabtain Umar 11 - Mar - 2023 01 Min 59 Sec 105/120 -
M Maha Musharaf 24 - Mar - 2023 02 Min 43 Sec 105/120 -
M Mehak Javaid 23 - Mar - 2024 11 Min 19 Sec 105/120 -
N Nayab Shahzad 02 - Mar - 2024 12 Min 29 Sec 105/120 -
U Unaiza Usman 15 - Feb - 2024 02 Min 40 Sec 100/120 -
D Daim Ali 05 - Dec - 2023 02 Min 26 Sec 95/120 -
A Azeema Siddique Muhammad Siddique 06 - Mar - 2024 02 Min 39 Sec 95/120
ECAT Chemistry Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Bleaching powder may be produced by passing chlorine over |
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
|
| 2 | Which is used as cooling medium in nuclear reactors? |
A. He
B. Ne
C. Ar
D. Kr
|
| 3 | Second most element in the universe is |
A. He
B. Ne
C. Ar
D. Kr
|
| 4 | Hydrogen bond is the strongest between the molecules of: |
A. HF
B. HCl
C. HBr
D. Hl
|
| 5 | Smell of halogens is: |
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
|
| 6 | Nobel gases are placed group: |
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
|
| 7 | Which is volatile liquid? |
A. HF
B. HCl
C. HBr
D. Hl
|
| 8 | The available chlorine is bleaching power is |
A. 25-30%
B. 30-35%
C. 35-40%
D. 40-45%
|
| 9 | The most reactive elements are |
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
|
| 10 | Used in tooth pastes is |
A. Fluorides
B. Iodides
C. halides
D. nitrides
|
Test Questions
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