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Q. Permanent hardness of water may be removed by addition of
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Q. The acid rain destroys vegetations because it contains
Q. Ordinary table salt is sodium chloride. What is baking soda?
Q. The Latin word formica means ant. The name formic acid is derived from this Latin word because
Q. Which of the given metals provides amphoteric oxide
Q. Is C2 Paramagnetic or Diamagnetic?
Q. The earliest known pesticide is
Q. The force exerted on a proton by a neutron within an atom is called
Q. Which compound contains both ionic and covalent bonds?
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