Related InterviewSolutions

• Between `SiCl_(4)` and `C Cl_(4)`, only `SiCl_(4)` reacts with water. `SiCl_(4)` is ionic and `C Cl_(4)` is covalent.A. Statement-I is True, Statement-II is True : Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True : Statement-II is `NOT` a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True.
• The mineral lapis Lazuli is a spendid blue colur and was highly prized as a pigment for oil paintings. It contains ultramarine `Na_(x) [(AlSiO_(4))_(y)] S_(Z)`. Then x - y is:
• Which of the following is used as black pigment in back ink and as filler in automobile tyres ?A. Carbon blackB. GermaniumC. GraphiteD. Coke
• Calculate the minimum number of moles of `R - Mg - X` (Grignard reagent) required in the formation of a mole of cyclic silicone.
• `CCl_(4)` is stable towards hydrolysis in water whereas `SiCl_(4)` is easily hydrolysed by water becauseA. carbon is more electropositive than siliconB. `CCl_(4)` is covalent whereas `SiCl_(4)` is ionicC. Silicon has a 3d orbital available for further coordination with water whereas carbon has no dorbital for bondingD.
• Assertion : Si-Si bond is stronger than Si-O bond. Reason: Silicon form Si-Si bond easily.A. Both Statement -I and Statement -II are true and Statement -II is the correct explanation of Statement-I.B. Both Statement -I and Statement -II are true and Statement-II is not the correct explanation of Statement-I.C. Statement-I is true and Statement-II is falseD. Statement-I is false but Statement -II is true
• Which of the following is not hydrolysed easilyA. `CCl_(4)`B. `SiCl_(4)`C. `GeCl_(4)`D. `SnCl_(4)`
• Which of the following statements are correct ?A. Graphite is thermodynamically more stable than diamondB. `alpha` - graphite has layers arranged as ABAB sequenceC. `beta` - graphite has layer arranged as ABCABC sequenceD. The number of C-atoms per unit lattice of diamond is 8.
• Which of the following halides is least stable and has a doubtful existence ?A. `Cl_(4)`B. `GeI_(4)`C. `SnI_(4)`D. `PbI_(4)`
• Which of the following halides does not exist ?A. `PbF_(4)`B. `PbCl_(4)`C. `PbBr_(4)`D. `PbI_(4)`