Recently Active Miscellaneous Questions

if a, b, c, d are unit vectors such that (axb).(cxd)=1 and a.c=1/2 then A) a,b, care non coplanar B) b,c,d are non coplanar D) b,d are non parallel D) a,d are parallel and b,c are parallel.. ...

Th espin only magnetic moment value of C2(CO)6 is A) 0 B) 2.84 C) 4.9 D)5.92 ...

let f be a non negetive functin defined on the interval [0.1]. If 0∫x 1-(f'(t))2 = 0∫xf(t)dt.. 0≤x≤1 and f(0)=0 then A) f(1/2)<1/2 and f(1/3)>1/3 B) f(1/2)>1/2 and f(1/3)>1/3 C) f(1/2)<1/2 and f(1/3)< ...

Match each of the compounds in column I with its characteristic reaction(s) in column II Column I Column II (A) CH3CH2CH2CN (p)Reduction with Pd-C/H2 (B) CH3CH2OCOCH3 (q) Reduction with SnCl2/HCl (C) CH3-CH=CH-CH2OH (r) Devel ...

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The compound Z is (A)Mg2[Fe(CN)6] (B)Fe[Fe(CN)6] (C)Fe4[Fe(CN)6]3 (D)K2Zn3[Fe(CN)6]2 ...

The compound Y is (A)MgCl2 (B)FeCl2 (C)FeCl3 (D)ZnCl2 ...

The compound(s) that exhibit(s) geometrical isomerism is(are) (A)[Pt(en)Cl2] (B)[Pt(en)2]Cl2 (C)[Pt(en)2Cl2]Cl2 (D)[Pt(NH3)2Cl2] ...

The mass of the particle is m = 1.0 x 10-30 kg and a=6.6 m the nergy of the particle in its ground state is closest to A) 0.8meV B) 8meV C) 80meV D) 800meV ...

Paragraph for Question Nos. 16 to 18 A carbonyl compound P, which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, whi ...

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 abo ...

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 electr ...

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 ...

A fair die is tossed repeatedly until a six is obtained. Let x denote the number of tosses required. The probability thta X=3 equals A) 25/216 B) 25/36 C) 5/36 D) 125/216 ...

Area bounded by the curve y=ex and lines x=0 and y=e is A) e-1 B) \int_{1}^{e}{ln(e+1-y)dy} C) e- \int_{0}^{1}{e^x dx} D) \int_{1}^{e}{ln y dy} ...

The line passing through the extremity A of the major axis and extremity B of the minor axis of the ellipese x2+9y2=9 meets its auxiliary circle at the point M. Then the area o fthe triangle with vertices at A, M and the orig ...

Let z= x+iy be a complex number where x and y are integers then the area o f rectangle whose vertices are roots of the equation zz3+zz3 = 350 is A) 48 B) 32 C) 40 D) 80 ...

The coordination number of Al in Crystalline state of AlCl3 is ...

The oxidation number of Mn in the product of alkaline oxidative fusion of MnO2 is ...

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The nitrogen oxides that contain N-N bond are N2o N2O3 N2O4 N2O5 ...

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The speedo fthe particle that can take discrete values is proportional to A) n-3/2 B) n-1 C) n1/2 D) n ...

Result of calculation for four different designs of a fusion reactor using D. D reaction are givn below. Which o fthese is most promising based on Lawson Criterion A) deuteron Density = 2.0 x 1012 cm-3, confinement time = 5.0 ...

Assume that two deuteron nuclei in the core of fusion reactor at temperature T are moving towards each other, each with kinetic energy 1.5kT, when the separation between them is large enough to neglect coulomb potential energ ...

for the circuit shown in the figure A) the current I through the battery is 7.5 mA B) The potential difference across Rl is 18 V c) Ratio of powers dissipated in R1 and R2 is 3 D) if R1 and R2 are interchanged, magnitude of t ...

A student performed the experiment of determination of focal length of a concave mirror by u-v method using an optical bench of lingth 1.5 meters. the focal length of the mirror is used is 24 cm. The maximum error in the loca ...

The figure shows certian wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic filed in the direction going into the plane of the figure. The magnitude of the field increases wi ...