Recently Active Questions

(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 ...

KVPY interview is going to be held in January . please give some tips on to go about it ! Advice needed . ...

*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? ...

Column-I gives certain situations regarding a point object and its image formed by an optical instrument. Consider direction of incident ray as positive x-direction. The possible optical instruments are concave and convex mir ...

A red card is removed from a pack of 52 cards. Then thirteen cards are drawn and are found to be of the same colour. Let p and q respectively conditional probabilities that the colour of the cards is black and red then (A) p ...

*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 ...

2 POSITIVE REAL NO.S x & y satisfying x≤1 & y≤1 r chosen at random.The probability that x+y≤1 , given that x2 + y2 ≥ 1/4 , is a) (8-∩) / (16-∩) b) (4-∩) / (16-∩) c)(4-∩) / (8-∩) d) None ...

A delegation of 5 students is to be formed from a group of 10 students. If 3 particular students want to remain together whereas two particular students do not want to remain together, then the number of selection is (A) 10 ( ...

2 positive real numbers x & y satisfy x <= 1 and y <= 1 are chosen at random. The probability that x + y ≤ 1, given that x2 + y2 ≥ 1/4 is (A) [(8-pi)/(16-pi)] (B) [(4 - pi)/(16-pi)] (C) [(4-pi)/(8-pi)] (D) None of t ...

*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+ ...

Consider the set X = {4, 5, 6, 8} and Y = {6, 8, 9, 10, 11, 12, 13}, the probability of a strictly decreasing function from set X to set Y, is (A) (120)/(343) (B) (35)/(343) (C) (35)/(2401) (D) (280)/(729) ...

How to solve these kind of questions effectively ????I always make blunders in theses...so plzz help...........experts are requested t o help ASAP [1] Eg. there are two sets A={a1,a2,a3......,an} and B={b1,b2,b3,.....,bm} wha ...

Consider an ellipse x2/sec2a + y2/tan2 a = 1 ,0<a<pi/4 with foci S1 & S2 . Let M be a point on the y-axis such that OM = OS1 , where O is origin. Which of the following r correct? (A)M lise inside the ellipse (B) M lies ...

can anyone explain me how to solve problems involving variable mass systems.. except rocket propulsion... please..? ...

IF DELHI IS CAPITAL OF INDIA THEN , INDIA IS ----------------- OF DELHI [fill in the blank] ...

Find the no of solutions. 2cosx= \left|sinx \right| x belongs to 0 to 2pie ...

prove that the equation x3-2x+1=0 has roots as √2sin(π/4),2sin(π/10),2sin(3π/10) q is from adg ...

A block of mass m is lowered from natural length position of spring slowly by an external agent to equillibrium position .The extension present in the mass less spring was asked from 2 students Student A : 1/2 kx2 = mgx => ...

*Image* ...

If the minimum distance of the point (1,1,1) from the plane x+y+z=1 measured perpendicular to the lines (x-a)/1 =( y-b)/2 =( z-c)/3 be ' l ' then the value of 21 l is ...... double integer answer ...

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]} ...

Wich is a good book for mathematics wich has theorems,formula and gud sums.i need it badly.my maths is in very ad condition. ...

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 ...

Ques 1) A boy of height 1.5 m with the eye level at 1.4 m stands before a plane mirror of length 0.75 m fixed on the wall. The height of the lower edge of the mirror above the floor is 0.8 m. Then :- (a) the boy will see his ...