ECAT Pre Engineering Chemistry Chapter 16 MCQ Test With Answer

Top Scorers Of ECAT Chemistry Chapter 16 The Halogens and The Noble Gases MCQ`s Test

A

Arian Ahmed 08 - Mar - 2024 00 Min 03 Sec 120/120
J

Jiya Khan 27 - Feb - 2024 02 Min 27 Sec 120/120
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Naima Kausar 13 - Mar - 2023 03 Min 10 Sec 120/120
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TETO Teto 13 - Mar - 2023 01 Min 24 Sec 115/120
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Tasawar Hussain 27 - May - 2024 02 Min 04 Sec 115/120
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Nasreen Sardar 10 - Jun - 2023 05 Min 14 Sec 115/120
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Khudeeja Iftikhar 12 - Mar - 2024 02 Min 57 Sec 110/120
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Khan Abdullah Asghar Mahmood 28 - Feb - 2024 03 Min 20 Sec 110/120
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Muhammad Sabtain Umar 11 - Mar - 2023 01 Min 59 Sec 105/120
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Maha Musharaf 24 - Mar - 2023 02 Min 43 Sec 105/120
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Mehak Javaid 23 - Mar - 2024 11 Min 19 Sec 105/120
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Nayab Shahzad 02 - Mar - 2024 12 Min 29 Sec 105/120
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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

Sr.#	Question	Answer
1	Molecule of halogens exist as	A. Monatomic B. Diatomic C. Triatomi D. Polyatomic
2	Which of the following hydrogen halide is the weakest acid in solution?	A. HF B. HBr C. Hl D. HCl
3	An element that has a high ionization energy and tends to be chemically inactive would most likely to be	A. an alkali metal B. a transition element C. a noble gas D. a halogen
4	Bleaching powder is prepared by the reaction of Cl₂with.	A. Lime stone B. Lime water C. slaked lime D. Lime
5	Which is volatile liquid?	A. HF B. HCl C. HBr D. Hl
6	The most reactive elements are:	A. Group IV-A B. Group V-A C. Group VI-A D. Group VII -A
7	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
8	The only non-metal in liquid form is	A. S B. Cl C. Br D. P
9	Chlorine heptoxide (Cl2O7) reacts with water to form	A. Hypochlorous acid B. chloric acid C. Perchloric acid D. Chlorine and Oxygen
10	Which noble gas is used in mixture used for breathing by divers?	A. Cl₂ B. NH₃ C. CO₂ D. He
11	Which compound of noble gas xenon can be prepared?	A. Oxides B. Fluoride C. Oxyfluorides D. All of these
12	Angle is OF₂is	A. 120⁰ B. 180⁰ C. 105⁰ D. 102⁰
13	Colour of bromine is	A. Pale yellow B. Greenish yellow C. Red brown D. Greyish black
14	Half life period of astatine is	A. 8.1 hrs B. 8.2 Hrs C. 8.3 hrs D. 8.4 hrs
15	Halogens are called.	A. salt former B. Light bearing C. copper forming D. None of these
16	Astatine belongs to group	A. I-A B. II-A C. III-A D. VII-A
17	Noble gases are placed in group	A. Group IV-A B. Group V-A C. Group VI-A D. Group VII-A
18	Which of the following hydrogen halide is the weakest acid in solution	A. HF B. HBr C. HI D. HCl
19	Colour of chlorine is	A. Pale yellow B. Greenish yellow C. Red brown D. Greyish black
20	Colour of Iodine is	A. Pale yellow B. Greenish yellow C. Red brown D. Greyish black
21	The strongest hydrogen bond is in	A. HF B. HCl C. HBr D. Hl
22	Radioactive element in halogens is	A. Astatine B. bromine C. Iodine D. Fluorine
23	Colour of fluorine gas is	A. Pale yellow B. Greenish yellow C. Red brown D. greyish black
24	Second most element in the universe is	A. He B. Ne C. Ar D. Kr
25	Which is used in bacterial lamps	A. He B. Ne C. Ar D. Kr
26	the anhydride of HCIO₄is	A. CIO₃ B. ClO₂ C. Cl₂O₅ D. Cl₂O₇
27	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
28	Which halogen occurs naturally in a positive oxidation state?	A. Fluorine B. Chlorine C. Bromine D. Iodine
29	Used in tooth pastes is	A. Fluorides B. Iodides C. halides D. nitrides
30	I₂O₅is used for quantitative study of	A. CO₂ B. NO₂ C. NO D. CO

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ECAT Pre Engineering Chemistry Chapter 16 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 16 The Halogens and The Noble Gases

ECAT Chemistry Chapter 16 The Halogens and The Noble Gases

Noble gases in the atmosphere are

Which is used in arc welding and cutting?

Colour of chlorine is

An element that has a high ionization energy and tends to be chemically inactive would most likely to be:

Which is volatile liquid?

Hydrogen bond is the strongest between the molecules of:

Hydrogen bond is the strongest between the molecules of

Bleaching powder is agent:

The available chlorine is bleaching power is

Which noble gas is used in mixture used for breathing by divers?

The only non-metal in liquid form is

The compound with cyclic hexamer is

A property which differs fluorine from the other halogens?

Bleaching powder may be produced by passing chlorine over

Gaseous HF exists in the form of

Which of the following hydrogen halide is the weakest acid in solution

Used in tooth pastes is

Colour of bromine is

Chlorine heptoxide (Cl2O7) reacts with water to form

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?

Halogens are called.

An element that has a high ionization energy and tends to be chemically inactive would most likely to be

Astatine belongs to group

Angle is OF2is

The noble gases are

Molecule of halogens exist as

Chlorin heptoxide reacts with water to form:

Which is used in bacterial lamps

the anhydride of HCIO4is

Which compound of noble gas xenon can be prepared?

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Top Scorers Of ECAT Chemistry Chapter 16 The Halogens and The Noble Gases MCQ`s Test

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Angle is OF₂is

the anhydride of HCIO₄is