Question : Which of the following sets make the terminals of the torch cell?
A. carbon - copper
B. zinc - aluminium
C. zinc - copper
D. carbon - zinc
Question Listed : Carbon, Zinc, Metals,
Question : Into which of the following metals does radioactive Uranium decay when it loses all its radioactivity?
A. Hydrogen
B. Carbon
C. Carbon
D. Radium
Question Listed : Carbon, Metals,
Question : Washing soda is the common name for
A. Calcium carbonate
B. Sodium bicarbonate
C. Calcium bicarbonate
D. Sodium carbonate
Question Listed : Sodium Carbonate, Elements, Metals,
Question : The main constituents of pearls are
A. ammonium sulphate and sodium carbonate
B. aragonite and conchiolin
C. calcium carbonate and magnesium carbonate
D. calcium oxide and ammonium chloride
Question Listed : Calcium Carbonate, Magnesium Carbonate, Elements, Metals,
Question : Soda water contains
A. nitrous acid
B. carbon dioxide
C. sulphuric acid
D. carbonic acid
Question Listed : Carbon Dioxide, Elements, Metals,
Question : Permanent hardness of water may be removed by the addition of
A. lime
B. potassium permanganate
C. alum
D. sodium carbonate
Question Listed : Sodium Carbonate, Elements, Metals,
Question : Diamond is an allotropic form of
A. sulphur
B. silicon
C. carbon
D. germanium
Question Listed : Carbon, Elements, Metals,
Question : Which one of the following gases is opaque to outgoing terrestial radiation but transparent to incoming solar radiation?
A. Helium
B. Nitrogen
C. Carbondioxide
D. Oxygen
Question Listed : Carbon Dioxide, Gas,
Question : The gas which turns limewater milky is
A. nitrogen dioxide
B. ammonia
C. carbon monoxide
D. carbon dioxide
Question Listed : Gas, Carbon Dioxide,
Question : Threat of global warming is increasing due to increasing concentration of
A. Carbon dioxide
B. Sulphur dioxide
C. Ozone
D. Nitrous oxide
Question Listed : Carbon Dioxide, Climate, Weather,
Question : The main cause of global climatic change is
A. Changes in plant cover
B. Adding of dust
C. Emissions of industrial gases
D. Increase in the content of carbon dioxide in the atmosphere
Question Listed : Carbon Dioxide, Climate, Weather,
Question : The inexpensive and commonly used variety of glass is called soda glass. It is called so because
A. is made using soda lime
B. was initially used for storing sodium carbonate
C. is made using soda(sodium carbonate)
D. was used initially for making bottles of soda(carbonated drink)
Question Listed : Soda, Sodium Carbonate, Chemistry,