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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 of the following hydrogen halide is the weakest acid in solution?
Question # 2
Bleaching powder is agent:
Question # 3
Half life of most stable isotope of astatine is
Question # 4
Perchloric acid can be stored in solution form
Question # 5
Colour of fluorine gas is
Question # 6
Which is used in bacterial lamps
Question # 7
Oxidation state of fluorine is:
Question # 8
Hydrogen bond is the strongest between the molecules of:
Question # 9
Which of the following represents the correct electronic configuration of the outermost energy level of an element of zero (VIIA) group in the ground state?
Question # 10
Halogens are called.
Question # 11
Which has complete valence shell?
Question # 12
Corrosion proof parts of machinery are prepared from
Question # 13
Smell of halogen is
Question # 14
Second most element in the universe is
Question # 15
The strongest hydrogen bond is in
Question # 16
Used in tooth pastes is
Question # 17
The most reactive elements are
Question # 18
Hydrogen bond is the strongest between the molecules of
Question # 19
Which is used in arc welding and cutting?
Question # 20
Which is used as cooling medium in nuclear reactors?
Question # 21
Chlorin heptoxide reacts with water to form:
Question # 22
Bleaching powder is prepared by the reaction of Cl2 with.
Question # 23
The only non-metal in liquid form is
Question # 24
Noble gases are placed in group
Question # 25
I2O5is used for quantitative study of
Question # 26
Which noble gas is used in mixture used for breathing by divers?
Question # 27
The compound with cyclic hexamer is
Question # 28
Gaseous HF exists in the form of
Question # 29
Noble gases in the atmosphere are
Question # 30
Which halogen will react spontaneously with Au(s)to produce Au3++
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 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 has complete valence shell? |
A. C
B. N
C. O
D. Ne
|
| 3 | The strongest acid is |
A. HF
B. HCl
C. HBr
D. HI
|
| 4 | Angle is OF2is |
A. 1200
B. 1800
C. 1050
D. 1020
|
| 5 | The only non-metal in liquid form is |
A. S
B. Cl
C. Br
D. P
|
| 6 | Chlorine heptoxide (Cl2O7) reacts with water to form |
A. Hypochlorous acid
B. chloric acid
C. Perchloric acid
D. Chlorine and Oxygen
|
| 7 | Oxidation state of fluorine is: |
A. +1
B. +2
C. -1
D. -2
|
| 8 | Smell of halogens is: |
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
|
| 9 | Which is the strongest acid? |
A. HClO
B. HClO2
C. HClO3
D. HClO4
|
| 10 | Which halogen will react spontaneously with Au(s)to produce Au3++ |
A. Br2
B. F2
C. I2
D. Cl2
|
Test Questions