Related InterviewSolutions

• In sodium atom on `3s` electron the screening is due to:A. `3s^(2),3p^(6)`B. `4s^(1)`C. `1s^(2),2s^(2),2p^(6)`D. `3s^(1)`
• What is correct order of reducing capacity.A. `Ge^(2+) gt Sn^(2+) gt Pb^(2+)`B. `Ge^(2+) lt Sn^(2+) lt Pb^(2+)`C. `Ge^(2+) ~~ Sn^(2+) ~~ Pb^(2+)`D. `Pb^(2+) gt Ge^(2+) gt Sn^(2+)`
• Which of the following elements can heve negative oxidation states.A. `AI`B. `Ca`C. `Fe`D. `B`
• The oxidation number that iron does not exhibit in its common compounds or in its elemental state is:
• Which can have both +ve and -ve oxdiation states in their compoundsA. `F`B. `I`C. `Na`D. `AI`
• Which metal exhibits more than one oxidation states in their compoundsA. `Na`B. `Mg`C. `AI`D. `Fe`
• The prperties which are not common to both groups 1 and 17 elements in the p-periodic table are:A. Electropositive character increase down the groups.B. Reactivity decrease from top to bottom in these groups.C. Atomic radii increase as the atomic number increase. D. Electronegativity decreases on moving down the group
• Which of the following compounds are found to exist (General formula obtaining)?A. `MgF`B. `Cu_(2)CI_(2)`C. `NaF_(2)`D. `K_(2)O`
• The prperties which are not common to both groups 1 and 17 elements in the p-periodic table are:A. Electropositive character increase down the groups.B. Reactivity decrease from top to bottom in these groups.C. Atomic radii increase as the atomic number increase.D. Electronegativity decreases on moving down the group
• Electron affinity is the `:`A. Energy absorbed when an electron is added to an isolated atom in the gaseous stateB. Energy released when an electron is added to an isolated atom in the gasesou stateC. Energy required to take out an electron from an isolated gaseous atomD. Power of an atom to attract an electron to itself.