641. Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally____?
✅ A. metallic substances
Everyday Science MCQs – Page 33
642. What is the body temperature of a normal man?
✅ A. 37.0 °C
643. Who invented “Aspirin” in 1897?
✅ C. Felix Hoffmann
644. Who discovered the Polio Vaccine?
✅ B. Jonas Salk
645. The distance between the optical centre of a convex lens and its principal focus is called its__?
✅ B. Focal Length
646. What is the Chemical formula of Zinc Hydroxide ____ ?
✅ B. Zn(OH)2
647. A chronometer meter measures_____?
✅ A. Time
648. Another name of vitamin C is_____?
✅ B. Ascorbic Acid
649. Steering of a car involves?
✅ D. A pair of forces acting along the same line and in opposite direction
650. The movement of any solvent across a semipermeable membrane is called_____?
✅ B. Osmosis
651. The study of the weather is called_______?
✅ B. Meteorology
652. The disease “Itai Itai “is caused by_______?
✅ A. Cadmium
653. Kilowatt-hour is a unit of_______?
✅ C. Energy
654. How many time zones are there in the world?
✅ D. 24
655. Fatal degenerative lung disease caused by particulate asbestos is referred to as ________?
✅ B. asbestosis
656. What melted rock eventually becomes lava?
✅ C. Magma
657. Magnalium is an alloy of________?
✅ C. Aluminium and Magnesium
658. Who invented the safety pin?
✅ C. Walter Hunt
659. Sedimentary rocks are_____?
✅ B. Porous
660. Sun revolves around milky way in about _____ million years.
✅ A. 230