Recently Active Chemistry Questions

Following reaction NH4+ + CN- → HCN + NH3 (in aqueous medium) proceeds in : a) forward direction b) backward direction c) in both sides equally d) can't be predicted Ans: (b) ...

Consider the following reactions in aqueous medium : A : H2CO3 (aq) + HSO4-(aq) → H2SO4(aq) + HCO3-(aq) B : HF(aq) + Cl- (aq) → HCl(aq) + F- (aq) C : HF(aq) + NH3(aq) → NH4+ + F- D : HSO4- + CN- → HCN + SO42- Reaction ...

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Question 1 *Image* Give Product. Which type of mechanism will it follow? Give reason. ---------------------------------------------------------------------------------------- Question 2 *Image* Give Product. ...

Is Schiffs test given even by alcohols in adittion to aldehydes ?? ...

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QUES-1: IS THE FOLLOWING COMPOUND OPTICALLY ACTIVE *Image* QUES-2: ISTHE FOLLOWING COMPOUND OPTICALLY ACTIVE *Image* QUES-3: NO. OF GEOMETRIC AND OPTICAL ISOMER OF *Image* QUES-4: NO. OF OPTICAL ISOMER OF *Image* ...

1. How NO3- and PO3- differ structurally? 2. Explain why glucose forms oxime but glucosepentaacetate does not? ...

The critical temperature of water is higher than that of O2 because the H2O molecule has : A. fewer electron than O2 B. two covalent bonds C. V-shape D. dipole moment Fiitjee has given two answers to this q so im not sure of ...

1)A:Alkali metals form ionic hydride . R:Alkali metals have low EN,their hydrides conduct electriicty when fused and liberate H2 at anode 2)A:Dipole moment of pyridine >pyrrole but in opp direction R:In pyrolle N atom cont ...

which is most acidic H ?? *Image* ...

1) Equimolar quantities of each of the following substances are dissolved in enough water to make 1 L of solution. Arrange the solution so prepared in order of increasing pH. (a) KHSO4 (b) NaHCO3 (c) Na2O (d) HClO4 (e) CH3 NH ...

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Scandium (Z = 21) shows variable oxidation states or not ??? *Image* *Image* NCERT says NO, but Brett Lee says YES. ...

Question Give order with respect to decreasing p-character of the hybrid orbitals of the central atoms: C3O2 I (HPO3)3 II B3N3H6 III ...

Question 1 The rate of nitration of the following aromatic compounds decreases in the order: *Image* I *Image* II *Image* III *Image* IV Question 2 True/False Type Ph_{3}\dot{C} radicle has more number of hyperconjugation str ...

i have a gross unending doubt with basics in electrode potential!! can i have a big lecture from someone on electrode potential from the exact starting in order to clear my basics as well as doubts!! ...

1.....why will the pH increase if NaOH is added to 10 litres of solution of water????????[2][2][2][2][2][2][2][2][2] edited ...

which is most unstable a)CH3COCOOH b)CH3COCH2COOH c)CH3COCH2CH2COOH d)CH3COCH2CH2CH2COOH ...

Q1When OH groups strongly attached with SiO2 derivatives a)Acidic strength inc b)acidic strength remains same c)basic strength inc d)cataytic activity inc Q2Due to availabltiy of lewis acid and bronsted in sites of natural ma ...

Arrange in Order of Bpt BiH3 NH3 SbH3 HF NH3 H2O ...

1.does elimination reaction of cycloalkyl hallide exclusively gives cis isomer ???? (found in arihant[51][51]) ...

1)SO2Cl2 Paramagnetic 2)K2HgI4+NaOH Refrigeration 3)Flourocarbons Testing NH3 4)NO H-bondidng ...

1.. *Image* give reasons ...

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*Image* **edit** in first step only 1 eq grignard is used **** ...

1) Which of the following will dissolve in a mixture of NaOH And H2O2 ? a) Ferric Hydroxide b) Chromic Hydroxide c) Aluminium Hydroxide d) Zinc Hydroxide 2) Select the wrong statements - a) Boron atom in the icosahedron has 5 ...