Basic Concept and Experimental Techniques in Chemistry MCQ's III

Here are MCQ's from chapter 1 basic concepts and chapter 2 Experimental techniques in chemistry Book 1

1. In paper chromatography, the rate at which solute moves depend on

A) Distribution Law
B) Law of partial pressure
C) Distribution coefficient
D) Law of definite proportion

2. Which of the following statements about atom is correct

A) May or may not exist independently
B) Made up of more than 100 subatomic particles
C) Take part in chemical reaction
D) all

3. Which of the following techniques is/are used to show the existence of an atom

A) Electron microscope
B) X ray diffraction method
C) Both a and b
D) none

4. Which of the following can always exist independently

A) Atom
B) Ion
C) Molecule
D) Radical

5. Size of molecule depends upon

A) Atomicity
B) shape of molecule
C) Both a and b
D) none

6. Which of the following is not mono isotopic element

A) F
B) Cl
C) I
D) Au

7. Isotopes of an element differ in

A) Arrangement of electrons in orbitals
B) Chemical properties
C) Electronic configuration
D) Properties which depends upon mass

8. Number of moles of CO2 which contains 8.0 g of oxygen

A) 0.25 mole
B) 0.50 mole
C) 1.0 mole
D) 1.50 mole

9. Which of the following statement is true

A) Isotopes with even atomic masses are comparatively abundant
B) Isotopes with odd atomic masses are comparatively abundant
C) Isotopes with even atomic masses and even atomic numbers are comparatively abdundant
D) Isotopes with even atomic masses and odd atomic numbers are comparatively abundant

10. Solvent Extraction is used to separate

A) Organic synthesis
B) Inorganic synthesis
C) Solvent
D) solute