Question:

Which of the following does. not give borax bead test?

Updated On: Jul 7, 2022
  • $\ce{Al_2(SO_4)_3}$
  • $\ce{Cu(NO_3)_2}$
  • $\ce{NiSO_4}$
  • $\ce{(CH_3COO)_2 Co}$
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The Correct Option is A

Solution and Explanation

Colour less salt (i.e., ${Al_2(SO_4)_3)}$ will not give borax bead test.
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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: