Arrange the first group elements in the decreasing order of Hydration Enthalpy

Arrange the first group elements in the decreasing order of Hydration Enthalpy 
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The hydration enthalpies of alkali metal ions decrease with increase in ionic sizes. Li+ > Na+ > K+ > Rb+ > Cs+

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Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO " " (Y) CH_(3)CHO " " (Z)CH_(3)COCH_(3) " " (W) CF_(3)CHO`

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How does the of Hydration Enthalpy of alkaline earth metals vary & compare it with alkali metals

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How does the of Hydration Enthalpy of alkaline earth metals vary & compare it with alkali metals

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Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill(B) Ball mill, Jaw crusher, Fluid energy mill(C) Fluid energy mill, Jaw crusher, Ball mill(D) Fluid energy mill, Ball mill, Jaw crusher

Description : Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill (B) Ball mill, Jaw crusher, Fluid ... C) Fluid energy mill, Jaw crusher, Ball mill (D) Fluid energy mill, Ball mill, Jaw crusher

Last Answer : (A) Jaw crusher, Ball mill, Fluid energy mill

What is Hydration Enthalpy ?

Description : What is Hydration Enthalpy ?

Last Answer : The amount of energy that is emitted when a mole of a compound is made into a dilute solution by dissolving the required number of gaseous positive and negative ions in a sufficient amount of water ... ion charge. The greater the product of the number of charges, the greater the hydration enthalpy.

The correct order of decreasing acidic strength of oxy acids of group 15 elements :

Description : The correct order of decreasing acidic strength of oxy acids of group 15 elements :

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The correct order of decreasing acidic strength of oxy acids of group 15 elements :

Description : The correct order of decreasing acidic strength of oxy acids of group 15 elements :

Last Answer : The correct order of decreasing acidic strength of oxy acids of group 15 elements : A. `HNO_(3) gt H_(3)SbO_(4) ... gt H_(3) PO_(4) gt H_(3) SbO_(4)`

From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. (c) The element with smallest ionic radius. (d) The element with six electrons in the valence shell. (e) The element which is a liquid at room temperature. (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

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Which group elements show very low ionization enthalpy in the periodic table?

Description : Which group elements show very low ionization enthalpy in the periodic table?

Last Answer : First group elements (alkali metals) 

Arrange the following elements in increasing order of metallic character: B, Al, Mg and K.

Description : Arrange the following elements in increasing order of metallic character: B, Al, Mg and K.

Last Answer : Ans. The correct order is: B

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Arrange the following elements in increasing order of their atomic size.

Description : Arrange the following elements in increasing order of their atomic size.

Last Answer : a) Li, Be, F, N a) F

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Last Answer : (a). Ar has highest first ionization enthalpy. (b). Na has large atomic radius (covalent radius). (c). Cl is more reactive non-metal in 3rd period. (d). Na is most reactive metal in third period.

Assign the reason for the following: (a) Enthalpy of fusion of water is higher as compared to the hydrides of Sulphur & Selenium. (b) Water is quite stable and does not dissociate in to its elements even at high temperature.

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Last Answer : Ans. In standard state enthalpies of all elements is zero.

Arrange the following group of colored lights in the order of INCREASING wavelength: RED, ORANGE, GREEN, BLUE

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The correct order of decreasing stability of hexafluorides of group 16 members is:

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The process by which an amino acid loses its amino group is called: a) hydration b) deamination c) oxidoamination d) dehydration

Description : The process by which an amino acid loses its amino group is called: a) hydration b) deamination c) oxidoamination d) dehydration

Last Answer : ANSWER: B -- DEAMINATION

Why the ionization enthalpy decreases down the group ?

Description : Why the ionization enthalpy decreases down the group ? 

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Description : Arrange the following in order of the increasing covalent character : MCl,MBr,MF,MI ( Where M=alkali metal)

Last Answer : Ans. MF < MCI < MB < MI

Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.

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Arrange the following polymer in increasing order of their molecular forces : (a) nylon-6, 6, Buna-S, polythene. (b) nylon-6, Neoprene, polyvinyl chloride.

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