Related InterviewSolutions

• vii. The stability of dihalides of ` Si, Ge , Sn` and Pb increases steadily in the sequence :A. `PbX_(2) lt SnX_(2) lt GeX_(2) lt SiX_(2)`B. `GeX_(2) lt SiX_(2) lt SnX_(2) lt PbX_(2)`C. `SiX_(2) lt GeX_(2) lt PbX_(2) lt SnX_(2)`D. `SiX_(2) lt GeX_(2) lt SnX_(2) lt PbX_(2)`
• Assertion : Between `SiCl_(4)` and `C Cl_(4)` only `SiCl_(4)` reacts with water. Reason : `SiCl_(4)` is ionic and `C Cl_(4)` is covalent.A. Both A and R are true and R is the correct explanatoin of AB. both A and R are true but R is the correct explanation of AC. A is true but R is falseD. A is false but R is true
• Which of the following molecules invovles the formation of ` dpi -p pi` bonding ?A. TrimethylamineB. Carbon monoxideC. trisilylamineD. `C_(3)O_(2)`
• Which has the most stable `+2` oxidation state ?A. FeB. SnC. PbD. Si
• Which of the following gases are needed/absorbed by plants for their growth ?A. `N_(2)`B. `CO_(2)`C. `CO`D. `O_(2)`
• Among the elements of group 14 the one having highest tendency to show stable +2 oxidation state isA. CarbonB. PlumbumC. GermaniumD. Silicon
• Carbon monoxide is absorbed byA. Ammonical cuprous chlorideB. pyrogallolC. chloroformD. `C Cl_(4)`
• Carbon monoxide is notA. a reducing agentB. a good oxidising agentC. neutral to litumsD. posisonous in nature
• A solid element (symbol Y) conducts electricity and forms two chlorides YCln ( a colourless volatile liquid) and `YCln-2` (a colourless solid). To which one of the following groups of the periodic table does Y belong ?A. 13B. 14C. 15D. 16
• Among the elements of group 14, the element having highest and that with lowest melting point are respectively.A. C,PbB. C,SnC. C, GeD. C,Si