Related InterviewSolutions

• Bleaching action of Bleaching powder is due to the liberation ofA. `Ocl_2^(2-)`B. `Ocl^(-)`C. `O_2Cl^-`D. `O^(2-)` or (E) `Cl^(-)`
• Bleaching powder is obtained by the interaction of `Cl_2` andA. Dry slaked limeB. hot `Ca(OH)_2`C. cold `Ca(OH)_2`D. conc. `CaCl_2`
• For two ionic solids, `CaO` and `KI`, which of the following statements is false?A. Lattice energy of CaO is much higher than that of KI.B. KI is soluble in benzeneC. CaO has high m.pD. KI has high m.p
• The first ionization energies of alkaline earth metal are higher than those of the alkali metals. This is because:A. there is increase in the nuclear charge of the alkaline earth metalsB. there is decrease in the nuclear charge of the alkaline earth metalsC. there is no change in the nuclear chargeD. none of the above
• A certain metal M is used to prepare an antiacid,which is used as a medicine in acidity. This metal accidently catches fire and it was found that the fire cannot be put out by using `Co_2` based extinguishers. The metal M isA. CaB. CC. MgD. None
• When calcium carbide is heated in atmosphere of nitrogen in an electric furnance, the compound formed isA. `Ca(CN)_2`B. `Ca_3N_2`C. `CaNC_2`D. CaNCN
• Which of the following carbide can be used to prepare methane by its action with water?A. `CaC_2`B. `Be_2C`C. `MgC_2`D. None
• Calcium is obtained by theA. roasting of lime stoneB. electolysis fo solution of calcium chloride in waterC. reduction fo calcium chloride with carbonD. electrolysis fo molten anhydrous or fused calcium chloride.
• When calcium carbide reacts with `N_2" at "1000^(@)C`, the compound formed isA. `CaCN_2`B. `Ca(CN)_2`C. `Ca_3N_2`D. `Ca(NO_3)_2`
• Calcium carbide is obtained by heatingA. Calcium carbonateB. A mixture of quick lime and cokeC. A mixture of slaked lime and cokeD. none of the above