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Subject: Chemistry, asked on 12/12/16

Please tell the correct answer with proper EXPLAINATION, HOW AND WHY  we eliminate the wrong options?

Subject: Chemistry, asked on 11/12/16

What is the difference between ionization enthalpy and ionization potential?

Subject: Chemistry, asked on 11/12/16

s

Subject: Chemistry, asked on 11/12/16

How should I learn the how to react different metals? If my basics are weak and pls what basics hould I strengthen?

Subject: Chemistry, asked on 11/12/16

Give an example of real life in reference to the shielding effect, where the concept of shielding effect could be seen easily???

Subject: Chemistry, asked on 11/12/16

why the shielding effect does not comes into play period when electrons keep on adding in the same shell, then why don't  due to shielding effect the attraction on the outermost shell decreases, and leading to increase in atomic size? Why it happens vice versa? Explain?

Subject: Chemistry, asked on 11/12/16

Why the ionization enthalpy is always positive wehreas electron gain enthalyp can be negative or positive?

Subject: Chemistry, asked on 11/12/16

Why the reactivity in the group 1 increases down the group which is  a metallic group whereas in the non metallic halogen group the chemical reactivity decreases down the group?

Subject: Chemistry, asked on 11/12/16

Why the chemical reactivity within a period is very high but decreases towards middle and then again increases to maximum in the halogen group which is a non metallic group. ?

Subject: Chemistry, asked on 9/12/16

According to periodic trends, atomic radii decreases from left to write in the period. But why do Halogen group elements have bigger radii as compared to Chalcogen(oxygen group) group? And then again the atomic radii decreases from Halogens to Noble Gas elements. Why is there a break of trend with Halogens?

Subject: Chemistry, asked on 8/12/16

52) The correct  order of electron affinity of the elements of oxygen family in the periodic table is
(A) O>S>Se
(B) S>O>Se
(C) S>Se>O
(D) Se>O>S

Subject: Chemistry, asked on 8/12/16

He is a s block element but it is placed with p block elements (with grp 18) bcz it has similar properties like noble gasses . Then He is S block element or a noble gas ?

Subject: Chemistry, asked on 24/11/16


a

Subject: Chemistry, asked on 24/11/16


a

Subject: Chemistry, asked on 24/11/16


a

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