Correct or incorrect statement about properties of alkali metals

1. A.
   All alkali metals are silvery white.
2. B.
   Density of potassium is less than sodium.
3. C.
   Compounds of group-1 elements are diamagnetic.
4. D.
   Melting point of group-1 elements increase down the group.

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1. A.
   Unipositive ions have inert gas configuration.
2. B.
   Compounds of unipositive ions are paramagnetic.
3. C.
   These form colourless compounds in +1 state.
4. D.
   These have high negative values of standard reduction potential.

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1. A.
   High density
2. B.
   Compounds are paramagnetic
3. C.
   Form dipositive ions only
4. D.
   Most electropositive elements

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