
Q1. We use to perform which of the following to test a hypothesis?
(a) Experiment
(b) Examination
(c) Evaluation
(d) Result
Q2. ‘Inquiry method’ is also known as
(a) Problem-solving method
(b) Collection method
(c) Heuristic method
(d) Classification method
Q3. Which is the formula of potash alum?

Q4. The projectors which are used to show opaque figures and pages of books are called
(a) Epidiascope
(b) Telescope
(c) Bioscope
(d) Radioscope
Q5. Other than nucleus which cellular organelle contains DNA?
(a) Ribosome
(b) Golgi Complex
(c) Mitochondria
(d) Lysosome
Q6. Which is vestigial organ in man?
(a) Pinna muscles
(b) Pinna
(c) Ileum
(d) Teeth
Q7. Which type of centrum is found in the vertebrae of mammals?
(a) Amphiplaytan
(b) Heterocoelous
(c) Procoelous
(d) Amphicoelous
Q8. The enzyme responsible for reduction of molecular nitrogen to ammonia in leguminous plant is
(a) Nitrite reductase
(b) Nitrate reductase
(c) Nitrogenase
(d) All the above
Q9. Marsh gas is
(a) Methane
(b) Ethane
(c) Propane
(d) Butane
Q10. Rusting of Iron is
(a) Reduction reaction
(b) Oxidation reaction
(c) Redox reaction
(d) Displacement reaction
S1. Ans.(a)
Sol.
S2. Ans.(c)
Sol.
S3. Ans.(c)
Sol.
S4. Ans.(a)
Sol.
S5. Ans.(c)
Sol.
S6. Ans.(a)
Sol.
S7. Ans.(a)
Sol.
S8. Ans.(d)
Sol.
S9. Ans.(a)
Sol.
S10. Ans.(b)
Sol.