Name two elements in same group of periode Table

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Question:
Name two elements in same group of periode Table

1.Oxygen and Uranium

2.Oxygen and sulphur

3.Calcium and Hydrogen

4.Cromium and Rubidium

Posted Date:-2022-01-11 14:39:41

More MCQS Questions and answers

  1. A chloride which forms a precipitate that is soluble in excess of anmmonium hydroxide is
  2. A compound which liberates reddish brown gas around the anode during electrolysis in its molten state :
  3. A polar covalent bond will be formed in which one of these pair of atoms
  4. A solution of the compound which gives a dirty green precipitate with sodium hydroxide.
  5. Alkalis are :
  6. Aluminum has a tendency to lose :
  7. An acid which is used in soda wash and in aerated drinks is __________.
  8. An element having atomic number 17 and belongs to halogens is _____________.
  9. An element having atomic number 19 and belongs to Alkali metals is ___________.
  10. An element having electronic configuration 2, 8, 18, 3 belongs to which group of the Modern Periodic Table?
  11. An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave Carbon 38.7% and Hydrogen 9.67%. The empirical formula of the compound would be
  12. Anhydrous iron(III) chloride is prepared by :
  13. Arrange the following as per instruction given in the brackets Cl, E, Br I (Increasing order of electron affinity)
  14. Arrange the following as per instruction given in the brackets: Cs Na Li R ( increase order or metallic character)
  15. During electrolysis of NaCl, the gas discharged at the anode is :
  16. How many valence electrons are Mg?
  17. How many water molecules does hydrated calcium sulphate contain ?
  18. If element X forms a chloride with the formula XCl3, then X would most likely belong to the same group of the Moderm Periodic Table as :
  19. ldentify the molecule with a single covalent bond.
  20. Lithium chloride is formed by transfer of electrons, which elements is getting oxidised in the process of formation ?
  21. Magnesium hydroxide is _____________.
  22. Na CO,10H,O is:
  23. Name an element, which reacts vigorously with water.
  24. Name the transition metal.
  25. Name two elements in same group of periode Table
  26. Naphthalene contains 93.75% C and the rest hydrogen. Molecular mass of naphthalene is 18 Find its empirical formula.
  27. Relation between vapour density and molecular weight
  28. Sodium carbonate is a basic salt because it is a salt at a:
  29. The electronic configuration of Mg is ___________.
  30. The empirical formula and molecular mass of a compound are CHO and 180g respectively. What will be the molecular formula of the compound ?
  31. The oxide and hydroxide of which metal is amphoteric :
  32. The salt which on hydrolysis forms acid is _______________.
  33. The vessel in which electrolysis of lead bromide is carried out is :
  34. Valency of aluminium is:
  35. What is the colour when methyl orange is added to Sulphuric acid ?
  36. When fused lead bromide is electrolysed we observe:
  37. Which element form very corrosive acid ?
  38. Which soln. becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it.
  39. Which type of bond is present in carbon tetrachloride?
  40. Write the name of a non-metal of group 15.
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