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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
Bleaching powder is agent:
Question # 2
Half life of most stable isotope of astatine is
Question # 3
The strongest acid is
Question # 4
Chlorine heptoxide (Cl2O7) reacts with water to form
Question # 5
Hydrogen bond is the strongest between the molecules of
Question # 6
Used in tooth pastes is
Question # 7
Chlorin heptoxide reacts with water to form:
Question # 8
The only non-metal in liquid form is
Question # 9
Bleaching powder is prepared by the reaction of Cl2 with.
Question # 10
Which is used as cooling medium in nuclear reactors?
Question # 11
Which is volatile liquid?
Question # 12
Noble gases in the atmosphere are
Question # 13
Which is present as a result of radioactive decay on earth?
Question # 14
Half life period of astatine is
Question # 15
The most reactive elements are
Question # 16
Colour of bromine is
Question # 17
Which has complete valence shell?
Question # 18
A property which differs fluorine from the other halogens?
Question # 19
Gaseous HF exists in the form of
Question # 20
I2O5is used for quantitative study of
Question # 21
Noble gases are placed in group
Question # 22
The most reactive elements are:
Question # 23
Halogens are called.
Question # 24
Which is used in bacterial lamps
Question # 25
Colour of fluorine gas is
Question # 26
Molecule of halogens exist as
Question # 27
Which halogen has maximum Van-der Waal's forces?
Question # 28
An element that has a high ionization energy and tends to be chemically inactive would most likely to be:
Question # 29
the anhydride of HCIO4is
Question # 30
The compound with cyclic hexamer is
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 | Half life of most stable isotope of astatine is |
A. 8.0 hrs
B. 8.1 hrs
C. 8.2 hrs
D. 8.3 hrs
|
| 2 | Which is used in arc welding and cutting? |
A. He
B. Ne
C. Ar
D. Kr
|
| 3 | Bleaching powder is agent: |
A. Dehydrating
B. Oxidazing
C. reducing
D. all
|
| 4 | The strongest hydrogen bond is in |
A. HF
B. HCl
C. HBr
D. Hl
|
| 5 | Which has the least oxidizing power? |
A. F2
B. Cl2
C. Br2
D. I2
|
| 6 | Hydrogen bond is the strongest between the molecules of: |
A. HF
B. HCl
C. HBr
D. Hl
|
| 7 | Molecule of halogens exist as |
A. Monatomic
B. Diatomic
C. Triatomi
D. Polyatomic
|
| 8 | the anhydride of HCIO4is |
A. CIO3
B. ClO2
C. Cl2O5
D. Cl2O7
|
| 9 | Nobel gases are placed group: |
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
|
| 10 | 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? |
A. s2p2
B. s2p4
C. s2p5
D. s2p6
|
Test Questions
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