Which one of the following statements is correct?

  • A
    Thallium is more electropositive than aluminium
  • B
    Boron has high electrical conductivity
  • C
    An aqueous solution of orthoboric acid is generally used as a mild antiseptic
  • D
    Boron-$11$ $(^{11}B)$ isotope has high ability to absorb neutrons

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Similar Questions

$A$. What are silicones? State the uses of silicones.
$B$. What are boranes? Give chemical equation for the preparation of diborane.

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In diborane $(B_2H_6)$, the number of electrons that accounts for bonding in the bridges is

Which of the following is isostructural with graphite?

Hybridisation of boron in diborane is

The correct statements from the following are:
$(A)$ Ionic radii of trivalent cations of group $13$ elements decrease down the group.
$(B)$ Electronegativity of group $13$ elements decreases down the group.
$(C)$ Among the group $13$ elements, Boron has the highest first ionisation enthalpy.
$(D)$ The trichlorides and triiodides of group $13$ elements are covalent in nature.
Choose the correct answer from the options given below:

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