Ionic mobility of which of the following alkali metal ions is lowest when an aqueous solution of their salts are put under an electric field?

(1) Na                       

(2) K

(3) Rb                       

(4) Li

Subtopic:  Physical Properties |
 72%
NEET - 2017
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The suspension of slaked lime in water is known as -

1. Limewater.

2. Quicklime.

3. Milk of lime.

4. Aqueous solution of slaked lime.

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
 70%
From NCERT
NEET - 2016
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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 |
 54%
From NCERT
NEET - 2016
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"Metals are usually not found as nitrates in their ores'"

Out of the following two (I and II) reasons which is/are true for the above observation?

I. Metal nitrates are highly unstable.

II. Metal nitrates are highly soluble in water.

1. I and ll are true 

2. I and II are false

3. I is false but ll is true

4. l is true but ll is tase

Subtopic:  Chemical Properties |
NEET - 2015
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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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An active ingredient in bleaching powder for bleaching action is -

1. Ca(OCl)2             

2. CaO2Cl

3. CaCl2                 

4. CaOCl2

Subtopic:  Physical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
 67%
From NCERT
NEET - 2011
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An alkaline earth metal sulphate that has hydration enthalpy higher than the lattice enthalpy is -

1. CaSO4               

2. BeSO4

3. BaSO4               

4. SrSO4

Subtopic:  Chemical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
 80%
From NCERT
NEET - 2010
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Property of the alkaline earth metals that increases with their atomic number is -

1. Solubility of their hydroxides in water.

2. Solubility of their sulphates in water.

3. Ionisation energy.

4. Electronegativity.

Subtopic:  Physical Properties |
 73%
From NCERT
NEET - 2010
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In the case of alkali metals, the covalent character decreases in the order

1. MCl>MI>MBr>MF

2. MF>MCl>MBr>MI

3. MF>MCl>MI>MBr

4. MI>MBr>MCl>MF

Subtopic:  Physical Properties |
 59%
NEET - 2009
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The thermal stability of these hydrides decreases in which of the following orders?

(1) CsH > RbH > KH > NaH > LiH

(2) KH > NaH > LiH > CsH > RbH

(3) NaH > LiH > KH > RbH > CsH

(4) LiH > NaH > KH > RbH > CsH

Subtopic:  Chemical Properties |
 63%
NEET - 2008
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