The most acidic oxide among the following is - 
1. MgO
2. BeO
3. BaO
4. CaO

Subtopic:  Reasoning Questions |
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Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?
1. K
2. Rb
3. Li
4. Na

Subtopic:  Physical Properties |
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The incorrect statement among the following regarding Beryllium is-

1. It is rendered passive by nitric acid.

2. lt forms Be2C

3. It's salts rarely hydrolyze.

4. It's hydride is electron-deficient and polymeric.

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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The suspension of slaked lime in water is known as
1.  lime water
2.  quick lime
3.  milk of lime
4.  washing of lime

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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The product obtained as a result of a reaction of nitrogen with CaC2 is .
1. CaCN
2. CaCN3
3. Ca2CN
4. CaCN2
Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Which of the following statements is false?
1. Ca2+ ions are important in blood clotting
2. Ca2+ ions are not important in maintaining the regular beating of the heart
3. Mg2+ ions are important in the green parts of plants
4. Mg2+ ions form a complex with ATP
Subtopic:  Biological Importance of S Block Elements and & Its Ore |
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