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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 halogen will react spontaneously with Au(s)to produce Au3++
Question # 2
Non sticking coating in cooking utensils is done by
Question # 3
Chlorine heptoxide (Cl2O7) reacts with water to form
Question # 4
Second most element in the universe is
Question # 5
Which halogen occurs naturally in a positive oxidation state?
Question # 6
Colour of Iodine is
Question # 7
Noble gases are placed in group
Question # 8
Which halogen has Iustrous shining?
Question # 9
A property which differs fluorine from the other halogens?
Question # 10
Colour of bromine is
Question # 11
The strongest acid is
Question # 12
Half life period of astatine is
Question # 13
The compound with cyclic hexamer is
Question # 14
Which noble gas is used in mixture used for breathing by divers?
Question # 15
Radioactive element in halogens is
Question # 16
Oxidation state of fluorine is:
Question # 17
Smell of halogens is:
Question # 18
Which has the least oxidizing power?
Question # 19
Which is used in arc welding and cutting?
Question # 20
Which halogen has maximum Van-der Waal's forces?
Question # 21
Angle is OF2is
Question # 22
Chlorin heptoxide reacts with water to form:
Question # 23
Which is used in bacterial lamps
Question # 24
Halogens are called.
Question # 25
Oxidation state of fluorine is
Question # 26
Which is the strongest acid?
Question # 27
Bleaching powder may be produced by passing chlorine over
Question # 28
The available chlorine is bleaching power is
Question # 29
Gaseous HF exists in the form of
Question # 30
Which of the following hydrogen halide is the weakest acid in solution?
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 | I2O5is used for quantitative study of |
A. CO2
B. NO2
C. NO
D. CO
|
| 2 | Which halogen will react spontaneously with Au(s)to produce Au3++ |
A. Br2
B. F2
C. I2
D. Cl2
|
| 3 | Colour of Iodine is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
|
| 4 | Which is present as a result of radioactive decay on earth? |
A. He
B. Ne
C. Ar
D. Kr
|
| 5 | A property which differs fluorine from the other halogens? |
A. Direct combination with inert gases
B. Uninegative
C. Diatomic
D. ns2 , np5
|
| 6 | Colour of fluorine gas is |
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
|
| 7 | Corrosion proof parts of machinery are prepared from |
A. Iron
B. Copper
C. Plastic
D. Teflon
|
| 8 | Half life period of astatine is |
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
|
| 9 | Chlorine heptoxide (Cl2O7) reacts with water to form |
A. Hypochlorous acid
B. chloric acid
C. Perchloric acid
D. Chlorine and Oxygen
|
| 10 | the anhydride of HCIO4is |
A. CIO3
B. ClO2
C. Cl2O5
D. Cl2O7
|
Test Questions