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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
I2O5is used for quantitative study of
Question # 2
Which is present as a result of radioactive decay on earth?
Question # 3
Colour of Iodine is
Question # 4
Noble gases are placed in group
Question # 5
Which noble gas is used in mixture used for breathing by divers?
Question # 6
Which is used in arc welding and cutting?
Question # 7
Which is used as cooling medium in nuclear reactors?
Question # 8
Oxidation state of fluorine is
Question # 9
Halogens are called.
Question # 10
Half life period of astatine is
Question # 11
Smell of halogen is
Question # 12
Hydrogen bond is the strongest between the molecules of:
Question # 13
Gaseous HF exists in the form of
Question # 14
The most reactive elements are
Question # 15
Which halogen will react spontaneously with Au(s)to produce Au3++
Question # 16
Which halogen has Iustrous shining?
Question # 17
Colour of chlorine is
Question # 18
Gaseous HF exists in the form of
Question # 19
Smell of halogens is:
Question # 20
Which of the following hydrogen halide is the weakest acid in solution?
Question # 21
Hydrogen bond is the strongest between the molecules of
Question # 22
Which halogen occurs naturally in a positive oxidation state?
Question # 23
Bleaching powder is agent:
Question # 24
Nobel gases are placed group:
Question # 25
Perchloric acid can be stored in solution form
Question # 26
Non sticking coating in cooking utensils is done by
Question # 27
Angle is OF2is
Question # 28
An element that has a high ionization energy and tends to be chemically inactive would most likely to be
Question # 29
Chlorine heptoxide (Cl2O7) reacts with water to form
Question # 30
Halogens are called
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 | Gaseous HF exists in the form of |
A. Monomers
B. Cyclic hexames
C. As single entity
D. Both (a) and (b)
|
| 2 | Second most element in the universe is |
A. He
B. Ne
C. Ar
D. Kr
|
| 3 | Colour of chlorine is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
|
| 4 | A property which differs fluorine from the other halogens? |
A. Direct combination with inert gases
B. Uninegative
C. Diatomic
D. ns2 , np5
|
| 5 | Colour of Iodine is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
|
| 6 | Astatine belongs to group: |
A. I-A
B. II-A
C. III-A
D. VII-A
|
| 7 | Chlorine heptoxide (Cl2O7) reacts with water to form |
A. Hypochlorous acid
B. chloric acid
C. Perchloric acid
D. Chlorine and Oxygen
|
| 8 | Which is used in arc welding and cutting? |
A. He
B. Ne
C. Ar
D. Kr
|
| 9 | Oxidation state of fluorine is: |
A. +1
B. +2
C. -1
D. -2
|
| 10 | Which is the strongest acid? |
A. HClO
B. HClO2
C. HClO3
D. HClO4
|
Test Questions