Important Questions of General Science General Awareness | Zigya

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231.

Who discovered Uranus?

  • Sir Issac Newton

  • William Henry Fox Talbot

  • William Herschel

  • Nicolaus Copernicus


232.

What is the unit of calorific value?

  • kN/kg

  • kJ/kg

  • kW/sec

  • kCal/sec


233.

According to the Central Pollution Control Board (CPCB), particulate size .........micrometers or less in diameter are responsible for causing the greatest harm to human health.

  • 0.5

  • 2.5

  • 5

  • 10


234.

Fire Extinguishers emit which gas?

  • Carbon monoxide

  • Chlorine

  • Carbon dioxide

  • Nitrogen


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235.

A change in which no new substances are formed is called ...........

  • Physical Change

  • Chemical Change

  • Rusting

  • Galvanisation


236.

The property of metal by which it can be drawn into wires is called ___________.

  • maleability

  • viscosity

  • ductility

  • tensile strength


237.

............ is the number of deaths in the population during a given period.

  • Natality

  • Mortality

  • Immigration

  • Emigration


238.

A change in which a substance undergoes a change in its physical properties is called ............

  • Chemical Properties

  • Physical Properties

  • Chemical Change

  • Physical Change


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239.

............ is the most ecologically relevant environmental factor.

  • Water

  • Temperature

  • Light

  • Soil


240.

................ is obtained by evaporation of sea.

  • Sugar

  • Iron

  • Salt

  • Steel


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