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Will you please provide me question paper for IIT JEE entrance examination as soon as possible ??
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Here I am giving you question paper for IIT JEE entrance examination in PDF file attached with it so you can get it easily.. The reaction of P4 with X leads selectively to P4O6. The X is (A) Dry O2 (B) A mixture of O2 and N2 (C) Moist O2 (D) O2 in the presence of aqueous NaOH Sol. (B) P4 + 3O2 2 N → P4O6 (exclusively) (N2 is used to retard the further oxidation.) 4. Among cellulose, poly(vinyl chloride), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is (A) Nylon (B) Poly(vinyl chloride) (C) Cellulose (D) Natural Rubber Among the electrolytes Na2SO4, CaCl2, Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 sol is (A) Na2SO4 (B) CaCl2 (C) Al2(SO4)3 (D) NH4C 10. The correct statement(s) about the compound H3C(HO)HC−CH=CH−CH(OH)CH3 (X) is(are) (A) The total number of stereoisomers possible for X is 6 (B) The total number of diastereomers possible for X is 3 (C) If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4 (D) If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2 Sol. (A, D) 12. The correct statement(s) regarding defects in solids is(are) (A) Frenkel defect is usually favoured by a very small difference in the sizes of cation and anion (B) Frenkel defect is a dislocation defect (C) Trapping of an electron in the lattice leads to the formation of F-center (D) Schottky defects have no effect on the physical properties of solids Sol. (B, C) 42. The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time. I1 and I2 are the currents in the segments ab and cd. Then, (A) I1 > I2 (B) I1 < I2 (C) I1 is in the direction ba and I2 is in the direction cd (D) I1 is in the direction ab and I2 is in the direction dc According to Lenz’s law, current will be in anticlockwise sense as magnetic field is increasing into the plane of paper. 43. Two small particles of equal masses start moving in opposite directions from a point A in a horizontal circular orbit. Their tangential velocities are v and 2v respectively, as shown in the figure. Between collisions, the particles move with constant speeds. After making how many elastic collisions, other than that at A, these two particles will again reach the point A? (A) 4 (B) 3 (C) 2 (D) 1 ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
__________________ Answered By StudyChaCha Member |