Chemistry MCQ's Test 1

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MULTIPLE CHOICE QUIZ MULTIPLE CHOICE QUIZ

1. Which substance in cement has greater percentage?

A) Magnesia
B) Alumina
C) Lime
D) Silica

2. What is maximum no.lof electron in an orbital with m( magnetic quantum number)=3

A) 6
B) 4
C) 3
D) 2

3. Rectified spirit is an example of ______________ mixture

A) Azeotropic
B) Zeotropic
C) Ideal
D) Equilibrium

4. Which of the following rays has greater frequency

A) Alpha rays
B) Beta rays
C) Gamma rays
D) x rays

5. Fruit juices and Fizzy drinks such as lemonade are often sold in aluminum cans. What is the most important reason aluminum is a suitable metal?

A) Aluminum can be recycled
B) Aluminum has very low density
C) Aluminum is the most abundant metal in the earth crust
D) Aluminum is resistant to corrosion by organic acids

6. Which of the following should not be used with hydrochloric acid to prepare zinc

A) Zinc carbonate
B) Zinc metal
C) Zinc hydroxide
D) Zinc nitrate

7. Which of the following will not give iodoform reaction?

A) 2-methyl-1-Butanol
B) Ethanal
C) Methyl ethyl ketone
D) 3-Methyl-2-propanol

8. Two different hydrocarbons each contain the same percentage by mass of hydrogen. It follows that they have the same

A) Empirical formula
B) Number of atoms in a molecule
C) Number of isomers
D) Relative molecular mass

9. Which of the following metals has an oxide that cannot be reduced by heating with magnesium?

A) Calcium
B) Copper
C) Iron
D) Silver

10. Which of the following statement is not correct

A) The electronic configuration of Cr is[Ar] 3d 4s
B) The magnetic quantum number may have negative value
C) In silver,23 electrons have a spin of one type and 24 of the opposite type
D) The oxidation state of hydrogen in NH3 is +3