Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Main Group Elements question

2020 · Q20
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /IIT JAM
  3. /Chemistry
  4. /Main Group Elements
  5. /2020 · Q20

Main Group Elements question

2020 · Q20

IIT JAMChemistryMain Group ElementsMCQ+2 / −0.67
The coordination number of aluminum ion and the number of bridging hydrogen atoms in [Al(BH₄)₄]⁻ are, respectively,
  1. A
    8 and 8
  2. B
    6 and 6
  3. C
    4 and 6
  4. D
    8 and 12
View written solutionFree

Correct answer: A

PreviousNext

More from Main Group Elements

  • The boron adduct(s), which show(s) three signals in ¹H NMR spectrum with the intensity ratio 1:2:3 is(are)2020 · Multiple correct
  • The value of 'n' in [Pn​O18​]6− is ​2020 · Numerical
  • The number of lone pairs present in phosphonic acid (phosphorus acid) is ​2020 · Numerical
  • One of the products of the hydrolysis of calcium phosphide at 25° C is2020 · MCQ
  • Among the following compounds, the one having the lowest boiling point is2019 · MCQ
  • In the structure of P₄O₁₀, the number of P-O-P bond(s) is ​.2019 · Numerical
  • Number of vertices in an icosahedral closo-borane is ​.2019 · Numerical
  • On hydrolysis, aluminium carbide produces2018 · MCQ