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In a group I.E decreases due to...

In a group I.E decreases due to

A

Increase in number of shells

B

Increase in atomic size.

C

Decrease in nuclear charge on valence electrons

D

All the above

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In a period, I.E increases due to

(A): Thermal stability of the hydrides of VIA group elements decreases from H_(2)O to H_(2)Po (R): The heats of dissociation of M-H bond of hydrides of VIA group decreases down the group

(A) Thermal stability of the hydrides of VIA group elements decreases from H_(2) O to H_(2) Po (R ) The heats of disociation of M-H bond of hydrides of VIA group decreases down the group

As atomic number increases, atomic size increases in a group and decreases along a period . Give reasons for this behaviour.

As atomic number increases, atomic size increases in a group and decreases along a period . Give reasons for this behaviour.

The ionisation energies from Ga to TI do not decrease due to

Aldehydes and ketons are susceptible to nuclephlic addition because carbonylgroup Polar (due to electronegativeity difference between carbon and oxygen positive charge on carbonyl compound towards nucleophilic . this addition is catalysed by acid . REactivity of carbonyl compound towards nuclephilic addotion increase with increase in teh electron deficiency at carbonyl carbon Thus (-I.E ) groups increase while (+I.E ) groups decreases the reactivity of carbonyl compound . select the least reactive carbonyl compound towards nuclephilic addition .

Aldehydes and ketons are susceptible to nuclephlic addition because carbonylgroup Polar (due to electronegativeity difference between carbon and oxygen positive charge on carbonyl compound towards nucleophilic . this addition is catalysed by acid . REactivity of carbonyl compound towards nuclephilic addotion increase with increase in teh electron deficiency at carbonyl carbon Thus (-I.E ) groups increase while (+I.E ) groups decreases the reactivity of carbonyl compound . which among the following is most reactive towards nuclephilic addition

Aldehydes and ketons are susceptible to nuclephlic addition because carbonylgroup Polar (due to electronegativeity difference between carbon and oxygen positive charge on carbonyl compound towards nucleophilic . this addition is catalysed by acid . REactivity of carbonyl compound towards nuclephilic addotion increase with increase in teh electron deficiency at carbonyl carbon Thus (-I.E ) groups increase while (+I.E ) groups decreases the reactivity of carbonyl compound . which among the following isomeric compound is most reactive towards nucleophilic addition

Aldehydes and ketons are susceptible to nuclephlic addition because carbonylgroup Polar (due to electronegativeity difference between carbon and oxygen positive charge on carbonyl compound towards nucleophilic . this addition is catalysed by acid . REactivity of carbonyl compound towards nuclephilic addotion increase with increase in teh electron deficiency at carbonyl carbon Thus (-I.E ) groups increase while (+I.E ) groups decreases the reactivity of carbonyl compound . Carbonyl compounds show nucleophilic addition with :

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. The distance between the nucleus and the outer most orbit is called

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  2. M^+ + IE2 =M^(+2)(g)+e^- This represents

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  3. In a group I.E decreases due to

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  4. Which of the following is the property of bonded atom ?

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  5. Which of the following is the limitation is Mendeleeff's periodic tabl...

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  6. Periodicity is observed in periodic table due to reappearance of simil...

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  7. One of the following statements is not true. It is

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  8. The atomic radius decreases in a period due to

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  9. Valency of an element indicates

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  10. The formula of oxides and chloride of Eka-Silicon is

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  11. Guess the atomic weight of middle element if the atomic weights ...

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  12. Ea2O3: EsO2 : GeO2 [ Ea = Eka aluminium, Es= Eka silicon]

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  13. Mendeleeff said about eka-aluminium "If I hold it in my hand, it will ...

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  14. Which of the following elements are not available at the time of Mende...

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  15. Which of the following element does not contain '3s' orbital ?

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  16. Why are lanthanides and actinides placed separately at the bot...

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  17. If 'He' is not a inert gas, it should be placed in the group.

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  18. n = 1: 1s ::n = 2: ………….

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  19. Guess the period if it has only '8' elements and K, L shells.

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  20. Which one shrinks in size than atom : i) Na^+ii) Na iii) Cl^- iv) CI

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