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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
The strongest hydrogen bond is in
Question # 2
Half life period of astatine is
Question # 3
Used in tooth pastes is
Question # 4
Which is present as a result of radioactive decay on earth?
Question # 5
Chlorin heptoxide reacts with water to form:
Question # 6
Colour of bromine is
Question # 7
Nobel gases are placed group:
Question # 8
Halogens are called
Question # 9
Which is the strongest acid?
Question # 10
Astatine belongs to group:
Question # 11
Bleaching powder is prepared by the reaction of Cl2 with.
Question # 12
Gaseous HF exists in the form of
Question # 13
Bleaching powder is agent:
Question # 14
Which halogen occurs naturally in a positive oxidation state?
Question # 15
Colour of chlorine is
Question # 16
Colour of fluorine gas is
Question # 17
Which of the following hydrogen halide is the weakest acid in solution?
Question # 18
Which is used in arc welding and cutting?
Question # 19
Colour of Iodine is
Question # 20
An element that has a high ionization energy and tends to be chemically inactive would most likely to be:
Question # 21
Which is used in bacterial lamps
Question # 22
Half life of most stable isotope of astatine is
Question # 23
the anhydride of HCIO4is
Question # 24
Radioactive element in halogens is
Question # 25
The most reactive elements are:
Question # 26
Which compound of noble gas xenon can be prepared?
Question # 27
Second most element in the universe is
Question # 28
Which noble gas is used in mixture used for breathing by divers?
Question # 29
Hydrogen bond is the strongest between the molecules of:
Question # 30
Noble gases are placed in group
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 is prepared by the reaction of Cl2 with. |
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
|
| 2 | Colour of fluorine gas is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
|
| 3 | Gaseous HF exists in the form of |
A. Monomers
B. Cyclic hexames
C. As single entity
D. Both (a) and (b)
|
| 4 | Which has the least oxidizing power? |
A. F2
B. Cl2
C. Br2
D. I2
|
| 5 | Which is used as cooling medium in nuclear reactors? |
A. He
B. Ne
C. Ar
D. Kr
|
| 6 | Hydrogen bond is the strongest between the molecules of |
A. HF
B. HCl
C. HBr
D. HI
|
| 7 | Colour of chlorine is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
|
| 8 | Which noble gas is used in mixture used for breathing by divers? |
A. Cl2
B. NH3
C. CO2
D. He
|
| 9 | Which halogen occurs naturally in a positive oxidation state? |
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
|
| 10 | Oxidation state of fluorine is: |
A. +1
B. +2
C. -1
D. -2
|
Test Questions