A. Their oxides are basic
B. Their oxide and hydroxides are water soluble
C. Both A & B
D. They are found in earth
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Related Mcqs:
- Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?
- A. Smaller electronegativity of alkali metals B. Smaller ionic radius of these metals C. De-excitation of electrons from higher energy levels to low energy level D. Excitation of electrons from low energy levels to higher energy levels...
- First ionization potential of alkaline earth metal is greater than alkali metals because___________________?
- A. They are more reactive B. They have greater atomic radii C. They have smaller atomic sizes D. All...
- Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?
- A. Lithium B. Sodium C. Potassium D. Rubidium...
- Second ionization potential of alkali metals are very high due to_______________?
- A. being s-block elements B. inert gas configurations C. ns1 electronic configuration D. being metals...
- Which of following metals can be displaced by all other metals from its solution ?
- A. Ag B. A C. Au D. Cu...
- Boron is non metal while other elements of IIIA group are metals. This is because______________?
- A. it has small size B. it has high nuclear charge C. it forms molecular addition compounds D. all of the above...
- Which one of the following is not an alkali metal ?
- A. Francium B. Caesium C. Rubidium D. Radium...
- The word Alkali means__________________?
- A. Base B. Basic salt C. Ashes D. Spirit...
- Which of the p-block elements are not representative elements ?
- A. Alkali metals (I-A) B. Group-14 elements (IV-A) C. Group-18 elements (VIII-A) D. Halogens (VII-A)...
- Metallic characters of alkali metals_____________________?
- A. Increase down the group B. Decrease down the group C. No regular trend D. Remain same...
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