In context with beryllium, which one of the following statements is incorrect?

1. It is rendered passive by nitric acid
2. It forms Be2C
3. Its salts rarely hydrolyze
4. Its hydride is electron-deficient and polymeric

Subtopic:  Reasoning Questions |
 63%
From NCERT
NEET - 2016
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The most acidic oxide among the following is - 
1. MgO
2. BeO
3. BaO
4. CaO

Subtopic:  Reasoning Questions |
 67%
From NCERT
NEET - 2018
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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 |
 78%
From NCERT
NEET - 2016
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A compound that releases CO2 most easily upon heating is?
1. K2CO3
2. Na2CO3
3. MgCO3
4. CaCO3

Subtopic:  Chemical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
From NCERT
NEET - 2015
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Which of the following biologically important ions is also a constituent of the sodium pump?

1. Ca2+
2. Mg2+
3. K+
4. Fe2+

Subtopic:  Biological Importance of S Block Elements and & Its Ore |
 89%
From NCERT
NEET - 2015
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Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Mg > Ca > Sr >Ba
2. Ca > Sr > Ba > Mg
3. Sr > Ca > Mg > Ba
4. Ba > Mg > Sr > Ca

Subtopic:  Chemical Properties |
 76%
From NCERT
NEET - 2015
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Which one of the following alkali metals forms only the normal oxide M2O on heating in air?

1. Rb

2. K

3. Li

4. Na

Subtopic:  Chemical Properties |
 89%
From NCERT
AIPMT - 2012
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 An active ingredient in bleaching powder that aids in the bleaching action is:

1.  CaOCl2

2.  CaO2Cl

3.  CaCl2

4.  CaOCl2

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
 73%
From NCERT
AIPMT - 2011
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A compound that has higher hydration enthalpy than the lattice enthalpy is: 

1. CaSO4

2. BeSO4

3. BaSO4

4. SrSO4

Subtopic:  Chemical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
 82%
From NCERT
AIPMT - 2010
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Among the given options, what is the property of the alkaline earth metals that increases with their atomic number?
1. Solubility of their hydroxides in water
2. Solubility of their sulphates in water
3. Ionization energy
4. Electro-negativity

Subtopic:  Chemical Properties |
 73%
From NCERT
AIPMT - 2010
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