Question

Duration: 60 Min 6x1=6 1. Multiple choice questions: 1. Water is natural resource which is? (A) Exhaustible (B) Inexhaustible 1) Exhaustible as well as inexhaustible (D) None of these 2. In a certain change, color and the magnetic properties of a substance changed. What reaction might this be? (A) Chemical combination. (B) Photochemical reaction. (C) Irreversible reaction (D) Physical change 3. Oxygen is used in hospitals for? (A) Burning wastage (B) Artificial respiration (C) Fermentation (D) Decomposition 4. Soft iron pieces placed across the ends of bar magnets when stored are called? (A) Compass (B) Keepers (C) Preservers (D) Poles 5. Direction of electric current in the circuit is from? (A) Negative to Positive terminals (B) Positive the negative terminals (C) Negative to negative terminals (D) Positive to neutral terminals.​

Answer 1

Answer:

1.ans (D)

2.ans(D)

3.ans(B)

4.ans(A)

5.ans(B)