KnowledgeBoat Logo

Chemistry

Complete the statements given below by filling in the blank with the correct word/s.

  1. The formula of silver [I] chloride is …………… [AgCl/AgCl2].

  2. The basic unit of an element is a/an …………… [molecule/atom/ion].

  3. Atom contains ………….. [neutron/nucleus], with positively charged …………… [electrons/protons] .

  4. Element ………….. [calcium/lead/carbon] has the symbol derived from its Latin name 'plumbum'.

  5. From the elements - He, Br, Pt & O; the element which forms a polyatomic molecule is …………… & which is liquid at room temperature is ……………

  6. The valency of iron in FeO is …………… [2+/1+] of chlorine [chloride] in CaCl2 is ………….. [1-/2-] and of dichromate in K2Cr2O7 is ………….. [2+/2-]

Chemical Formula

9 Likes

Answer

  1. The formula of silver [I] chloride is AgCl.

  2. The basic unit of an element is a/an atom.

  3. Atom contains nucleus, with positively charged protons.

  4. Element lead has the symbol derived from its Latin name 'plumbum'.

  5. From the elements - He, Br, Pt & O ; the element which forms a polyatomic molecule is O & which is liquid at room temperature is Br

  6. The valency of iron in FeO is 2+ of chlorine [chloride] in CaCl2 is 1- and of dichromate in K2Cr2O7 is 2-.

Answered By

5 Likes

Related Questions