A. tetrahedral
B. triangular planar
C. square planar
D. pyramidal
In the Dewar's method of separation of noble gases, the mixture of noble gases is kept in contact with coconut charcoal at 173K. Which one of the following gaseous mixtures is not adsorbed on to the charcoal ?
Which of the following has S---S bond ?
The number of oxygen atoms bonded to one phosphorus atom in P<sub>4</sub>O<sub>6</sub> is:
Which of the following is not correct
Which of the following is not correct<br>
The molecular formula of potash alum is :
In Fischer-Ringe's method of separation of nobles gas mixture, from air is used
Observe the following statements regarding purification of bauxite<br>I. During Hall\'s process, silica is removed as Si (vapour)<br>II. Bauxite ore contaminated with Fe<sub>2</sub>O<sub>3</sub> is purified in Baeyer\'s process<br>III. During Serpeck's process, AlN is formed<br>The correct answer is
Which one of the following pairs of reactants does not form oxygen when they<br>react with each other