801. Light from the sun travels a distance before it reaches the earth:
A. 50 Million Kilometers
B. 100 Million Kilometers
C. 150 Million Kilometers*
D. 200 Million Kilometers
802. The most suitable thermometer for measuring the boiling point of water is:
A. Mercury thermometer*
B. Alcohol thermometer
C. Bimetallic thermometer
D. Liquid crystal thermometer
803. The density of water is greatest at:
A. -30 degrees Centigrade
B. 0 degrees centigrade
C. 4 degrees centigrade*
D. 100 degrees centigrade
804. __ is the smallest particle of an element and it exhibits all the properties of an element.
A: Atom
B: Molecule
C: Neutron
D: None of the above
805. Rust stains on clothes are removed by the use of?
A: Sodium
B: Oil
C: Oxalic Acid Solution
D: All of the above
806. A photographic camera fitted with a convex lens, then which of the following types of images will be formed on the film?
A: Erect
B: Real
C: Inverted
D: Inverted and Real
807. When water is heated from 0 degrees centigrade to 10 degrees centigrade, the volume of water?
A: First decreases and then Increases
B: First increases and then decreases
C: Only increases
D: Remains stable
808. Lightest substance is?
A: Nitrogen
B: Hydrogen
C: Oxygen
D: None of the above
809. Which is an alloy?
A: Bronze
B: Zinc
C: Tin
D: None of the above
810. What is the chemical name of laughing gas?
A: Oxygen
B: Nitric oxide
C: Nitrous oxide
D: None of the above
Admin