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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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\int_{\pi /4}^{3\pi /4}{\frac{x}{1+sinx}}dx for practice ans.........> \pi (\sqrt{2}-1) ...

Find no of solutions of : Sin(pi x)=|log|x||. ...

The question that said [sin x + cos x] / sin2x this function had to be integrated with limits (pi/6) to (pi/3) ...

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.evaluate *Image* far practize ...

A chain of length L and linear mass density \lambda ¸ is held such that it hangs vertically just above the pan of electronic balance. It is then released. What is the reading on the scale, as a function of the height of the ...

Para: Let a,b,c are complex numbers and the roots of the equation z3+az2+bz+c=0 are unimodular Q1. The value of |a|-|b| = (ans got =0) Q2. The number of distinct real roots of the equation z3+|a|z2+|b|z+|c|=0 is (a) 1 (b) 2 ( ...

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The earth bulges slightly at the equator, due to the centrifugal force in the earth's rotating frame. Show that the height of a point on the earth (relative to a spherical earth), is given by h=R\left(\frac{R\omega ^{2}}{6g} ...

A particle moves along the x axis according to the law x = a cos wt. Find the distance that the particle covers during the time interval from t = 0 to t??????????????? ...

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* ...

An ellipse has OB as semi-minor axis F,F' are its foci and the angle FBF' is a right angle.Then eccentricity of the ellipse is ........... pls explain ...

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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Question 1 Multiple Correct Answer Type For the curve y=ce^{\frac{x}{a}} A) subtangent is constant B) subnormal varies as square of abcissa C) x-intercept of tangent is 2a-c D) normal at its point of intersection with y-axis ...

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 ...

TWO IDENTICAL TRAINS ARE MOVING ON RAILS ALONG THE EQUATOR ON THE EARTH IN OPPOSITE DIRECTIONS. WILL THEY EXERT SAME PRESSURE ON THE RAILS? (W.B. BOARD)(3) PLZ PROVIDE NECESSARY JUSTIFICATIONS TO UR ANSWERS......TOMORROW IS M ...