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KVPY Exam Pattern, KVPY Questions with Answers Page 24

(#M40027093) KVPY QUESTION General Ability Test Keep an EYE

The number of P-H bond(s) in H3PO2, H3PO3 and H3PO4, respectively, is
(A) 2, 0, 1 (B) 1, 1, 1 (C) 2, 0, 0 (D) 2, 1, 0

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(#M40027092) KVPY QUESTION General Ability Test Keep an EYE

In the conversion of zinc ore to zinc metal, the process of roasting involves
(A) ZnCO3 → ZnO (B) ZnO → ZnSO4 (C) ZnS → ZnO (D) ZnS → ZnSO4

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(#M40027091) KVPY QUESTION General Ability Test Keep an EYE

After 2 hours the amount of a certain radioactive substance reduces to 1/16th of the original amount (the
decay process follows first-order kinetics). The half-life of the radioactive substance is
(A) 15 min (B) 30 min (C) 45 min (D) 60 min

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(#M40027090) KVPY QUESTION General Ability Test Keep an EYE

A compound that shows positive iodoform test is
(A) 2-pentanone (B) 3-pentanone (C) 3- pentanol (D) 1-pentanol

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(#M40027089) KVPY QUESTION General Ability Test Keep an EYE

The gas produced from thermal decomposition of (NH4)2Cr2O7 is
(A) oxygen (B) nitric oxide
(C) ammonia (D) nitrogen

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(#M40027088) KVPY QUESTION General Ability Test Keep an EYE

At 298 K, assuming ideal behaviour, the average kinetic energy of a deuterium molecule is
option
(A) two times that of a hydrogen molecule
(B) four times that of a hydrogen molecule
(C) half of that of a hydrogen molecule
(D) same as that of a hydrogen molecule

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(#M40027087) KVPY QUESTION General Ability Test Keep an EYE

The set of principal (n), azimuthal (l) and magnetic (m1) quantum numbers that is not allowed for the electron in H-atom is
option
(A) n = 3, l = 1, m1 = -1
(B) n = 3, l = 0, m1 = 0
(C) n = 2, l = 1, m1 = 0
(D) n = 2, l = 2, m1 = -1

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(#M40027086) KVPY QUESTION General Ability Test Keep an EYE

Two balloons A and B containing 0.2 mole and 0.1 mole of helium at room temperature and 2.0 atm, respectively, are connected. When equilibrium is established, the final pressure of He in the system is
option
(A) 1.0 atm
(B) 1.5 atm
(C) 0.5 atm
(D) 2.0 atm

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(#M40027085) KVPY QUESTION General Ability Test Keep an EYE

The number of air molecules in a (5m × 5m × 4m) room at standard temperature and pressure is of the order of

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(#M40027084) KVPY QUESTION General Ability Test Keep an EYE

A nucleus of lead 214 Pb82 emits two electrons followed by an alpha particle. The resulting nucleus will have
option
(A) 82 protons and 128 neutrons
(B) 80 protons and 130 neutrons
(C) 82 protons and 130 neutrons
(D) 78 protons and 134 neutrons

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