Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

In equation 11 Na^23 + 1H^1 gives 12 Mg^23 + x, x represents (a) Neutron (b) deutron (c) alpha – particel (d) poistron In equation 11 Na^23 + 1H^1 gives 12 Mg^23 + x x represents (a) Neutron (b) deutron (c) alpha - particel (d) poistron February 13, 2021 Category: Uncategorised (JEE Advanced Physics by [...]

The cause of instability of nucleus is (a) High proton : electron ratio (b) High proton : neutron ratio (c) Low proton : electron ratio (d) Low proton : neutron ratio The cause of instability of nucleus is (a) High proton : electron ratio (b) High proton : neutron ratio (c) Low proton : electron [...]

Which one of the following statements is incorrect (a) mass defect is related with binding energy (b) Meson was discovered by Yukawa (c) The size of the nucleus is of the order of 10^-12 – 10^-13 cm (d) magnetic quantum numbrer is a measure of orbital angular momentum of the electron Which of the following [...]

Stable nuclides are those whose n/p ratio is (a) n/p=1 (b) n/p = 2 (c) n/p >1 (d) n/p <1 Stable nuclides are those whose n/p ratio is (a) n/p=1 (b) n/p = 2 (c) n/p >1 (d) n/p <1 February 13, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The atomic mass of lead is 208 and atomic number is 82. The atomic mass of bismuth is 209 and atomic number is 83 . The ratio of n/p in the atom is The atomic mass of lead is 208 and atomic number is 82. The atomic mass of bismuth is 209 and atomic number [...]

Which of the following does not contain number of neutrons equal to that of 40 18 Ar Which of the following does not contain number of neutrons equal to that of 40 18 Ar February 13, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In the sequence of following nuclear reactions 92X^238 gives Y gives -Bita gives Z gives L gives -nalpha gives 84M^218 the value of n will be (a) 3 (b) 4 (c) 5 (d) 6 In the sequence of following nuclear reactions 92X^238 gives Y gives -Bita gives Z gives L gives -nalpha gives 84M^218 the [...]

RCOOH on treatment with PCl5 and KCN, is subjected to hydrolysis followed by Clemmensen’s reduction the product obtained is (a) RCH2 – COCl (b) RCH2 – COOH (c) RCOCN (d) RCN is subjected to hydrolysis followed by Clemmensen's reduction the product obtained is (a) RCH2 - COCl (b) RCH2 - COOH (c) RCOCN (d) RCN [...]

Saponification of ethyl benzoate with caustic soda as alkali gives (a) Benzyl alcohol and ethanoic acid (b) Sodium benzoate and ethanol (c) Benzoic acid and sodium ethoxide Saponification of ethyl benzoate with caustic soda as alkali gives (a) Benzyl alcohol and ethanoic acid (b) Sodium benzoate and ethanol (c) Benzoic acid and sodium ethoxide February [...]

The reaction of an ester RCOOR’ with an alcohol R”OH in the presence of an acid gives (a) RCOOH (b) R’COOH (c) R”COOR (d) RCOOR” (e) R’COOR” The reaction of an ester RCOOR' with an alcohol R"OH in the presence of an acid gives (a) RCOOH (b) R'COOH (c) R"COOR (d) RCOOR" (e) R'COOR" February [...]