Subject: Chemistry, asked on 15/6/17

## Underwhat condition does formaldehyde undergo aldol condensation

Subject: Chemistry, asked on 10/6/17

## Give me correct explanation of each option Ammonia forms the complex ${\left[Cu{\left(N{H}_{3}\right)}_{4}\right]}^{2+}$ with copper ions in alkaline solution but not in acid solution. The reason for it is: (1) in alkaline solution $Cu\left(OH{\right)}_{2}$ is precipitated which is soluble in excess of alkali. (2) copper hydroxide is amphoteric. (3) in acidic solution hydration protects $C{u}^{2+}$ ions. (4) in acidic solution protons coordinates with ammonia molecule forming $N{{H}_{4}}^{+}$ ions and $N{H}_{3}$ molecules are not available.

Subject: Chemistry, asked on 31/5/17

## B-2 explain me for each option B-2. Which of the following names is impossible ? (A) Potassium tetrafluoridooxidochromate (Vl)               (B) Barium tetrafluoridobromate (lll) (C) Dichlorobis (urea) copper (ll)                                     (D) All are impossible

Subject: Chemistry, asked on 26/5/17

## What is the coordination no. of Ag in its +1 oxidation state??

Subject: Chemistry, asked on 14/5/17

## I think answer sholu be 6 as . shown plz check where i am wrong

Subject: Chemistry, asked on 8/5/17

## How Many ions will be prodused on ionising aquatic solution of "Ferric Hexa Cyno Ferrate (III)" ???

Subject: Chemistry, asked on 7/5/17

## Here answer is vander waal strain . Plz explain how . Also if vanderwaal strain is the answr then what is significanceof torsional strain

Subject: Chemistry, asked on 6/5/17

## Solve this:

Subject: Chemistry, asked on 6/5/17

## Plz explain.q.23 . How to determine whether central.atom show 4.or 6 oxidation number

Subject: Chemistry, asked on 6/5/17

## Plz answer34. Also plz tell whetherL behave as strong field or weak ligand

Subject: Chemistry, asked on 2/5/17

## Plz

Subject: Chemistry, asked on 20/4/17

## code c q.no 2 jee mains offline as already asked you said the ans was option 1, and not 2 (that is reported by cbse key) so can we challenge that question are you sure! please help and tell me fast!!

Subject: Chemistry, asked on 18/4/17

## ​​ Jee main q.no 2) code c on coordination chemistry, I got option 1 but CBSE answer key says that the answer is 2) I found a solution that supports my answer. Is it correct can I challenge this answer key?

Subject: Chemistry, asked on 10/4/17

## Q. Excess of silver nitrate solution is added to 100 mL of 0.01 M pentaaquachlorochromium (III) chloride solution. The mass of silver chloride obtained (in gram) is [ Atomic mass of silver is 108] (a) 287 x 10-3              (b) 143.5 x 10-3              (c) 143.5 x 10-2             (d) 287 x 10​-2

Subject: Chemistry, asked on 10/4/17

## Please explain how to find the answer of the following question 10.  Excess of silver nitrate solution is added to 100 mL of  0.01 M pentaaquachlorochromium (III) chloride         solution.  The mass of silver chloride obtained ( in gram ) is [Atomic mass of silver is 108]                                                                                                                                                   [KCET 2011] (a)  287 x 10-3                                                              (c)  143.5 x 10-3 (b)  143.5 x 10-2                                                           (d)  287 x 10-2

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