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In comparison to boron, berylium has (a) Lesser nuclear charge and greater first ionisation enthalpy (b) Lesser nuclear charge and lesser first ionisation enthalpy
28
Nov
In comparison to boron, berylium has (a) Lesser nuclear charge and greater first ionisation enthalpy (b) Lesser nuclear charge and lesser first ionisation enthalpy berylium has (a) Lesser nuclear charge and greater first ionisation enthalpy (b) Lesser nuclear charge and lesser first ionisation enthalpy In comparison to boron November 28, 2020 Category: Uncategorised (JEE Advanced [...]
The correct sequence of thermal stability of the following carbonates is (a) BaCO3 < CaCO3 < SrCO3 < MgCO3
28
Nov
The correct sequence of thermal stability of the following carbonates is (a) BaCO3 < CaCO3 < SrCO3 < MgCO3 The correct sequence of thermal stability of the following carbonates is (a) BaCO3 < CaCO3 < SrCO3 < MgCO3 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The number of pentagons in C 60 and trigons (triangles) in white phosphorus, respectively, are (a) 12 and 3 (b) 20 and 4 (c) 12 and 4
28
Nov
The number of pentagons in C 60 and trigons (triangles) in white phosphorus, respectively, are (a) 12 and 3 (b) 20 and 4 (c) 12 and 4 are (a) 12 and 3 (b) 20 and 4 (c) 12 and 4 respectively The number of pentagons in C 60 and trigons (triangles) in white phosphorus November [...]
The measurement of the lectron position is associated with an uncertainity in momentum , which is equal to 1 x 10 ^-18 g/cm . The uncertainity in electron velocity is , (mass of an electron is 9 x 10^-28 g )
28
Nov
The measurement of the lectron position is associated with an uncertainity in momentum , which is equal to 1 x 10 ^-18 g/cm . The uncertainity in electron velocity is , (mass of an electron is 9 x 10^-28 g ) (mass of an electron is 9 x 10^-28 g ) The measurement of the [...]
In beta plus decay a. antineutrino is produced with electron b. neutrino is produced with positron c. neutron is produced with electron d. none of these
28
Nov
In beta plus decay a. antineutrino is produced with electron b. neutrino is produced with positron c. neutron is produced with electron d. none of these In beta plus decay a. antineutrino is produced with electron b. neutrino is produced with positron c. neutron is produced with electron d. none of these November 28, 2020 [...]
When a slow neutron is captured by a U92235 nucleus, a fission energy releasing 200 MeV. If power of nuclear reactor is 100 W then rate of nuclear fission is
28
Nov
When a slow neutron is captured by a U92235 nucleus, a fission energy releasing 200 MeV. If power of nuclear reactor is 100 W then rate of nuclear fission is a fission energy releasing 200 MeV. If power of nuclear reactor is 100 W then rate of nuclear fission is When a slow neutron is [...]
Which of the following statement is incorrect? a. Neutron is less stable than proton b. Neutron can cause fission in nuclear reactors but proton can not. c. A free proton can emit beta particle. d. A bound proton can emit beta particle.
28
Nov
Which of the following statement is incorrect? a. Neutron is less stable than proton b. Neutron can cause fission in nuclear reactors but proton can not. c. A free proton can emit beta particle. d. A bound proton can emit beta particle. What is the amount of energy released by deuterium and tritium fusion? November [...]
The correct statements among (A) to (D) are (A) Saline hydrides produce H2 gas when reacted with H2O. (B) Reaction of LiAlH4 with BF3 leads to B2H6.
28
Nov
The correct statements among (A) to (D) are (A) Saline hydrides produce H2 gas when reacted with H2O. (B) Reaction of LiAlH4 with BF3 leads to B2H6. The correct statements among (A) to (D) are (A) Saline hydrides produce H2 gas when reacted with H2O. (B) Reaction of LiAlH4 with BF3 leads to B2H6. November [...]
The nucleus mn X emits one α particle and 2β-particles. The resulting nucleus is
28
Nov
The nucleus mn X emits one α particle and 2β-particles. The resulting nucleus is The nucleus mn X emits one α particle and 2β-particles. The resulting nucleus is November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics ,
The alloy used in the construction of aircrafts is (a) Mg-Sn (b) Mg-Mn (c) Mg-Al (d) Mg-Zn
28
Nov
The alloy used in the construction of aircrafts is (a) Mg-Sn (b) Mg-Mn (c) Mg-Al (d) Mg-Zn The alloy used in the construction of aircrafts is (a) Mg-Sn (b) Mg-Mn (c) Mg-Al (d) Mg-Zn November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,