Tag: iit jam biotechnology previous year paper PYQ

Q.30 Which one is the major product of the following reaction? The major product is the mono‑azo dye in which diazotized sulphanilic acid couples at the para position of resorcinol, […]

Q.29 Considering the periodic trends of elements, which of the following is NOT correct? (A) MgO and Na₂O are basic, and SiO₂ is acidic (B) Atomic radius decreases in a […]

Q.28 Of the given isomers of molecules Ι and ΙΙ, the meso-form is CH₃CH(Br)CH(Cl)CH₃ Ι CH₃CH(Cl)CH(Cl)CH₃ ΙΙ (A) (R,R)-isomer of Ι (B) (R,S)-isomer of ΙΙ (C) (R,S)-isomer of Ι (D) […]

Q.27 The major product in the following reaction is The major product is option (A), the alkene with an equatorial double bond and the isopropyl group trans (dashed) to it. […]

Q.26 Match the equations in the left column with their names in the right column Equations Names (i) ln Ka = ln A – Ea/RT (p) Kirchhoff’s law (ii) ln […]

Q.25 Consider two vectors P and Q of equal magnitude. If the magnitude of P + Q is two-times larger than that of P − Q, then the angle between […]

Q.24 An electron is accelerated from rest through a potential difference of 400 V. The electron then enters a uniform magnetic field that is perpendicular to the direction of electrons. […]

Q.23 An alpha particle and a proton have the same de Broglie wavelength. Which of the following is also the same for the two particles if they are moving at […]

Q.22 In a p-n junction, the depletion region has a width of 3 × 10-7 m and the intensity of electric field in the depletion region is 106 V/m. An […]

Q.21 Let Z be the set of all integers and f and g are one-one mappings from Z into itself. If    −−=++= nodd for n f(n) = […]