Metal And Its Compounds MCQ

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• Which one among the following chemicals is used as washing soda?
  ক

  Calcium carbonate

  খ

  Calcium bicarbonate

  গ

  Sodium carbonate

  ঘ

  Sodium bicarbonate
• What is deposited on iron in the process of galvanisation?
  ক

  Copper

  খ

  Zinc

  গ

  Tin

  ঘ

  Aluminium
• Which of the following is not a form of Calcium Carbonate?
  ক

  Chalk

  খ

  Gypsum

  গ

  Limestone

  ঘ

  Marble
• Which one of the following materials contains calcium?
  ক

  China clay

  খ

  Corundum

  গ

  Gypsum

  ঘ

  Talc
• Which of the following is not true about manganese?
  ক

  It is used in heating elements of electric iron, toasters etc.

  খ

  Affects its resistance at high temperature levels

  গ

  Manganese is an electronegative element

  ঘ

  It does not oxidize easily
• Which of the following is an alloy of copper and zinc?
  ক

  Bronze

  খ

  Alnico

  গ

  Brass

  ঘ

  Solder
• Which one among the following is the main ingredient in cement?
  ক

  Gypsum

  খ

  Limestone

  গ

  Clay

  ঘ

  Ash
• Which one of the following is not true for bleaching powder?
  ক

  It is used as a reducing agent in chemical industries

  খ

  It is used for bleaching wood pulp in paper factories

  গ

  It is used for disinfecting drinking water

  ঘ

  It is used for bleaching linen in textile industry
• Name the sodium compound which is used to permanently remove the hardness of water.
  ক

  Sodium hydroxide

  খ

  Sodium chloride

  গ

  Sodium hydrogen carbonate

  ঘ

  Sodium carbonate
• Which of the following is a major component of German silver?
  ক

  Tin

  খ

  Copper

  গ

  Silver

  ঘ

  Chorine
• Which one of the following oxides dissolves in water?
  ক

  CuO

  খ

  Al₂O₃

  গ

  Fe₂O₃

  ঘ

  Na₂O
• What is the dominant chemical present in detergent powder?
  ক

  Hydrochloric acid

  খ

  Sodium carbonate

  গ

  Calcium carbonate

  ঘ

  Sodium alkyl sulphate
• Which one of the following is the chemical formula of Washing Soda?
  ক

  NaHCO₃

  খ

  $$N{a_2}C{O_3} \cdot 10{H_2}O$$

  গ

  $$N{a_2}C{O_3} \cdot 5{H_2}O$$

  ঘ

  NaOH
• What is the chemical formula of Plaster of Paris?
  ক

  CaSO₄.H₂O

  খ

  CaSO₄.2H₂O

  গ

  CaSO₄

  ঘ

  CaSO₄.$$\frac{1}{2}$$H₂O
• Which among the following elements comes under metalloids?
  ক

  Germanium

  খ

  Zinc

  গ

  Silver

  ঘ

  Gold
• What is baking soda?
  ক

  Potassium permanganate

  খ

  Sodium chloride

  গ

  Sodium bicarbonate

  ঘ

  Sodium carbonate
• Which pair of following is of Copper alloys?
  ক

  Brass and Invar

  খ

  Bronze and Nichrome

  গ

  Brass and Bronze

  ঘ

  None of the above
• Which of the following can be beaten into thin sheets?
  ক

  nitrogen

  খ

  oxygen

  গ

  sulphur

  ঘ

  iron
• Which of the following metal remains in liquid form at room temperature?
  ক

  Cadmium

  খ

  Mercury

  গ

  Germanium

  ঘ

  Tin
• Which of the following metals does not react with air?
  ক

  Potassium, Nickel

  খ

  Gold, Platinum

  গ

  Gold, Silver

  ঘ

  Silver, Platinum
• Which of the following is the chemical name of baking soda?
  ক

  Sodium carbonate

  খ

  Sulphate

  গ

  Sodium hydrogen carbonate

  ঘ

  Calcium hydroxide
• In which of the following industries is mica used as a raw material?
  ক

  Iron and steel

  খ

  Toys

  গ

  Glass and pottery

  ঘ

  Electrical
• Which of the following is slaked lime?
  ক

  Ca(OH)₂

  খ

  CaO

  গ

  CaCO₃

  ঘ

  CaCl₂
• Which one of the following is used for water softening?
  ক

  Mg(HCO₃)₂

  খ

  Na₃PO₄

  গ

  Na₆P₆O₁₈

  ঘ

  Na₂HPO₄
• Which one of the following is the chemical formula of gypsum?
  ক

  $$CaS{O_4} \cdot 2{H_2}O$$

  খ

  Ca₂SiO₄

  গ

  $$2CaS{O_4} \cdot {H_2}O$$

  ঘ

  CaSO₄
• Which metal is generally used for coating of brass utensils to prevent copper contamination?
  ক

  Tin

  খ

  Zinc

  গ

  Aluminium

  ঘ

  Lead
• Which one of the following materials is very hard and very ductile?
  ক

  Carborundum

  খ

  Tungsten

  গ

  Cast iron

  ঘ

  Nichrome
• What is plaster of paris made of?
  ক

  Limestone

  খ

  Quick lime

  গ

  Gypsum

  ঘ

  Hydrated lime
• Tooth enamel is made up of which one of the following calcium compounds?
  ক

  Calcium carbonate

  খ

  Calcium sulphate

  গ

  Calcium hydroxide

  ঘ

  Calcium phosphate
• Natrium is the Latin name of which of the following:
  ক

  Lithium

  খ

  Sodium

  গ

  Rubidium

  ঘ

  Potassium