Recently Active Chemistry Questions

(a)Calicene has an unusually large dipole moment (ie. separation of charge) for a hydrocarbon. Explain using resonance structures. (b)Cyclopropanone is very reactive because of angle strain. Methylcyclopropanone is quite stab ...

Ques 1) A body centred cubic lattice is made up of hollow spheres of B. Spheres of Solid A are present in hollow spheres of B. Radius of A is half of radius of B. What is the ratio of the total volume of spheres of B unoccupi ...

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The equation for the reaction in the figure below is AB_{5}_{(g)} + heat\leftrightarrow AB_{3}_{(g)} +B_{2}_{(g)} double arrow means the reaction is in equilibrium *Image* At\; time\; 3\; min\; , what\; change\; was\; imposed ...

** Only Q6 is more than one correct ** Q1 BeO +NaOH → ? Q2 Which is used for fixing atmospheric nitrogen ? a)nitrolim b)Li3N c)Mg3N2 d)all I am sure abt a)..but not abt others.. Q3 BaC2 +N2 +heat → ?? Q4 CaC2 +N2 +heat ↠...

how to study qualitative analysis ? i find it as a mere collection of facts put together........ i dont know how to learn this part of chemistry . plz help! ...

Pick out the statement(s) which is/are not true about the diagonal relationship of Li and Mg. (A) Like Li, Mg forms a nitride by direct combination with nitrogen. (B) Like lithium, magnesium reacts rapidly with water. (C) Lik ...

CoCl2 + KNO2 + CH3COOH ---> [X] + H2O + KCl + CH3COOK + NO (Unbalanced equation) Which of the following statement is correct ? (A) X is a yellow crystalline solid insoluble in water. (B) X is a green coloured compounds and ...

(Quantities) (A) Molar conductance (B) emf of a cell in operation (C) Gibbs energy change (ΔG) for a cell (D) Conductivity (Factors on which dependency exist) (P) Temperature (Q) Concentration of species involved (R) Nature ...

*Image* i just need the answers ...becoz i feel my answer key is wrong.. ...

Protonation of 1, 2-butadiene gives carbocation A, and protonation of 2-butyne yields carbocation B. In both cases the most stable carbocation possible is produced, but not carbocation rearrangements take place (no hydride or ...

How is a racemic mixture formed when n-butane is mono chlorinated? ...

*Image* The correct order of rate of acid catalyzed hydration of following compounds is : (A) II > I > IV > III (B) III > I > IV > II (C) I > III > IV > II (D) III > IV > II > I ...

*Image* The transformation of P in Q can be carried out by using the reagents (A) Dil. H2SO4, CH3MgCl, H+ (B) HOCl/H+, CH3MgCl (1eq.), H+ (C) CH3CO3H/D, CH3MgCl, H+ (D) Cl2/CCl4, CH3MgCl(1eq.), H+ ...

1) Assertion-Reason I- Decomposition of NH3 on Pt surface is a zero order reaction at lower concentration of NH3, but at higher concentration, the order becomes a first order reaction. II- Rate = \frac{K_1 \left[NH_3 \right]} ...

just try this ! its great ! *Image* ...

Briefly explain the following observations. Where possible and appropriate, use structures and/or mechanisms to support your answers. (a) The carbon-carbon bonds in naphthalene are not equal in length. (b) The resonance energ ...

An organic compound A of molecular formula C3H6O exists in equillibrium with an optically active compound when treated with an equivalent of CH3OH in acidic medium The compound A is (A) Propanone (B) Propanal ...

predict the correct acidity order of H3O+ , HCO3- , HSO4 - , HSO3F ...

We usually say that s subshell is closer to the nucleus than p, d, f etc of the same shell, isn't it? But according to the plots given in the following graph, it shows that 3d is closest to the nucleus, then 3p and then 3s. S ...

the reactivity of SN1 increases with the stability of carbocation where as that of nucleophilic addition rxn decreases with stability of carbocation?? ...

What are the products in following reactions ? *Image* ...

what is d-d transition and charge transfer ? how do we judge whether the colour is due to dd transition or due to charge transfer? ...

*Image* If the answer of Q1) is "x" & that of Q2) is "y", Give the value of (x+y)..... I don't have individual answers. But (x+y) =10. ...

assertion:cyclobutane is less stable than cyclopentane reason:presence of ebnt bonds causes loss of orbital overlap ...

arrange in decreasing order of acidity-----benzoic acid,o-methylbenzoic acid,p-methyl benzoic acid,m-methylbenzoic acid ...

assertion:NC-CH2CH2COOH IS CALLED 3-CYANO-PROPANOIC ACID WHILE OHC-CH2CH2COOH IS CALLED 4-OXOBUTANOIC ACID REASON-WHILE NAMING POLYFUNCTIONAL COMP.,-COOH GETS PREFERENCE OVER CYANO AND OXO GPS. ...

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metamers can also be chain isomers..true or false! ...

ch3-ch(Br)-ch3 [in presence of OH-(aq)] --------> above reaction is sn1/sn2>>>>> i think it must be sn1 as a polar protic solvent is there........am i right??? ...