Class XI

Way atoms join together and combine with one another is called as
  1. Isotopes
  2. Alloys
  3. Bonding
  4. Dative bond
 Formula of tetra chloromethane is
  1. CCl4
  2. CH4Cl4
  3. C(HCl)4
  4. C4. HCl4
Consider equation: Cu+2(aq) + 2OH-(aq) → Cu(OH)2(s). precipitate of Copper Hydroxide (Cu(OH)2) will be of
  1. Green color
  2. Blue color
  3. Brown color
  4. White color
Formula of Nitrogen Trichloride (NCl3) is
  1. NaCl2
  2. NaCl3
  3. NCl3
  4. N2Cl3
PH of soils can be controlled through
  1. Neutralization
  2. Acidic oxides
  3. Amphoteric oxides
  4. Neutral oxides
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