Chemistry Equations | Chemical Reaction MCQs Quiz Test

Solved chemistry MCQs for class 12 chapter wise notes in quiz tests. These are important MCQs of chemistry for entry test of MCAT, MDCAT and chemistry Educators National Testing Services - NTS Tests. Solved online chemistry exam past years MCQs of Chemistry are also available here.

Online MCQs Chemistry Quiz Test

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Chemistry Equations MCQs Online Quiz Test

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A Level Chemistry Questions And Answers Quiz Test

Q.1: Keeping in view the size of atom which order is correct one ?

1. Mg > Sr
2. Ba > Mg
3. Lu > Ce
4. C1 > I

B

Q.2: Shaking two immiscible liquids increases--------- ?

1. Length of contact
2. Volume of contact
3. Area of contact
4. all of above

C

Q.3: Ionization energy in a period generally ----------- ?

1. Increases
2. Decreases
3. No change
4. Variable trend

A

Q.4: Measurement of the degree of polarity is----------- ?

1. Electron affinity
2. Ionic character
3. Ionization energy
4. Dipole moment

D

Q.5: Which one has maximum number of unpaired electrons ?

1. 6X
2. 7Y
3. 9Z
4. 13W

B

Q.6: Energy released or absorbed when electrons are added in atom is-------- ?

1. Ionization potential
2. Electronegativity
3. Electron affinity
4. Activation energy

C

Q.7: Bond order for N2 molecule is ---------- ?

1. 2
2. 1
3. 3
4. 4

C

Q.8: Noble gases are named so because they are--------- ?

1. less reactive
2. Zero group elements
3. Having completely filled valence shell
4. All

D

Q.9: In which of the following pairs are elements belonging to the same group ?

1. Boron & Beryllium
2. Nitrogen & Phosphorous
3. Magnesium & Aluminium
4. Gallium & Helium

B

Q.10: Which of the following cannot exist in solution-------- ?

1. O-2
2. H+
3. Cl-
4. Na+

A