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MCQ's Test For ECAT Chemistry Chapter 1 Basic Concepts
Try The MCQ's Test For ECAT Chemistry Chapter 1 Basic Concepts
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 1 Basic Concepts
00:00
Question # 1
When 0.1 g of magnesium is treated with an excess of hydrochloric acid, what volume of gas at room temperature and pressure will be produced
Question # 2
The mass of one mole of proton is
Question # 3
1.12 dm3of N2gas at S.T.P. has mass of N2gas
Question # 4
The percentage of H is the highest in
Question # 5
Which one of the following statements is not correct
Question # 6
An ion bearing positive charge is called:
Question # 7
Atoms can be evident by use of electron microscope, field ionization microscope and:
Question # 8
Smallest particle of an element which may or may not have independent existence is known as:
Question # 9
One mole of C2H5OH contains the number of H-atoms
Question # 10
One mole of ethanol and one mole of ethane have an equal
Question # 11
The branch of science dealing with structure, composition and changes in matter and laws and principles which govern these changes is called as
Question # 12
Which of the following statements is not true?
Question # 13
A ring contains 3 gram diamond. The number of C-atoms which a ring contains is
Question # 14
Ascorbic acid contains 40.92% carbon, 4.58%, hydrogen and 54.4% oxygen. The empirical formula is
Question # 15
0.5 mole of CH4and 0.5 mole of SO2gases have equal
Question # 16
Atoms and molecules can either gain or lose electrons, forming charge particles called:
Question # 17
The number of isotopes of gold is
Question # 18
The number of atoms present in molecule determines its:
Question # 19
0.5 mole of CH4and 0.5 mole of SO2gases have equal
Question # 20
The largest number of molecules are present in
Question # 21
Metal tend to lose electrons, becoming:
Question # 22
How many moles of hydrogen atoms does 3.2 g of methane, CH4, contain?
Question # 23
Hemoglobin contains nearly:
Question # 24
One of the following statements is incorrect
Question # 25
First atomic theory was put forward by an English school teacher:
Question # 26
The relative abundance of Pb isotopes is 1.5% Pb204, 23.6% Pb206, 22.6% Pb207, 52.3% Pb208The relative atomic mass of Pb is
Question # 27
The percentage of which element in the organic compound is determined by the difference method
Question # 28
The relative atomic mass of chlorine is 35.5. What is the mass of 2 mol of chlorine gas
Question # 29
Isotopes of an element differ in
Question # 30
Which of the following compounds contains the highest percentage by mass of nitrogen?
Top Scorers Of ECAT Chemistry Chapter 1 Basic Concepts MCQ`s Test
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Z zakee 09u 28 - Nov - 2024 18 Min 56 Sec 95/120 -
H habib rehman 17 - Apr - 2026 24 Min 01 Sec 92/120 -
A Aroosha Tariq 13 - Nov - 2024 06 Min 02 Sec 90/120 -
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I ISI?Shadow 16 - Nov - 2024 17 Min 47 Sec 80/120 -
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S shahmeer Ch 17 - Jun - 2026 08 Min 55 Sec 64/120
ECAT Chemistry Chapter 1 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 |
|
A. 84.84 %
B. 89.89%
C. 81.81%
D. 90.90%
|
| 2 | Formation of a cation is: |
A. Exothermic process
B. Non-endothermic process
C. Endothermic process
D. None of above
|
| 3 | An ion bearing positive charge is called: |
A. Cation
B. Positron
C. Anion
D. None of above
|
| 4 | Al3+is a symbol for aluminium |
A. Atom
B. Ion
C. Cation
D. Anion
|
| 5 | The branch of science dealing with structure, composition and changes in matter and laws and principles which govern these changes is called as |
A. chesmistry
B. Geology
C. Physics
D. Mechanics
|
| 6 | Atoms can be evident by use of electron microscope, field ionization microscope and: |
A. x-rays
B. Video camera
C. Telescope
D. Compound microscope
|
| 7 | The amount of products obtained from the balanced chemical equation is regarded as |
A. Theoretical yield
B. Actual yield
C. % yield
D. Experimental yield
|
| 8 | A beaker contains 9 grams of water. The number of H-atoms is |
A. 6.02 x 1023
B. 3.01 x 1023
C. 6.02 x 1024
D. 3.01 x 1024
|
| 9 | A balloon contains 0.02 gram of H2gas, it contains H2molecules |
A. 6.02 x 1023
B. 3.01 x 1022
C. 6.02 x 1021
D. 3.01 x 1021
|
| 10 |
The diameter of atoms is of the order: |
A. 2* 10-5m
B.
2* 10-10 m
C. 2* 10-2m
D. 2* 10-3m
|
Test Questions
Share your comments & questions here
ishaq
05 Mar 2019where is the syllabus or preparation material
ishaq
05 Mar 2019...
Mehwish
30 Jun 2018...