Nucleus A is having mass number 220 and its binding energy per nucleon is 5.6 MeV. It splits in two fragments ‘B’ and ‘C’ of mass numbers 105 and 115. The binding energy of nucleons in ‘B’ and ‘C’ is 6.4 MeV per nucleon. The energy Q released per fission will be :
The compound(s) that is(are) removed as slag during the extraction of copper is(A)CaO,(B)FeO,(C)Al2O3,(D)ZnO,(E)NiOChoose the correct answer from the options given below :
The enthalpy of combustion of propane, graphite and dihydrogen at 298 K are –2220.0 kJ mol–1, –393.5 kJ mol–1 and –285.8 kJ mol–1, respectively. The magnitude of enthalpy of formation of propane (C3H8) is _____ kJ mol–1. (Nearest integer)
The geometry around boron in the product ‘B’ formed from the following reaction is
The half-life for the decomposition of gaseous compound A is 240 s when the gaseous pressure was 500 torr initially. When the pressure was 250 torr, the half-life was found to be 4.0 min. The order of the reaction is ______. (Nearest integer)
The interhalogen compound formed from the reaction of bromine with excess of fluorine is a :
The IUPAC nomenclature of an element with electronic configuration [Rn] 5f146d17s2 is
The number of sp3 hybridised carbons in an acyclic neutral compound with molecular formula C4H5N is ________.
The photochemical smog does not generally contain :
The reaction of H2O2 with potassium permanganate in acidic medium leads to the formation of mainly
When light of frequency twice the threshold frequency is incident on the metal plate, the maximum velocity of emitted electron is v1. When the frequency of incident radiation is increased to five times the threshold value, the maximum velocity of emitted electron becomes v2. If v2 = x v1, the value of x will be ________.
Which of the following sets of quantum numbers is not allowed?
Which one of the following reactions does not represent correct combination of substrateand product under the given conditions?
\(\lim_{{x \to 0}} \limits\) \(\frac{cos(sin x) - cos x }{x^4}\) is equal to :
A solid metallic cube having total surface area 24 m2 is uniformly heated. If its temperature is increased by 10°C, calculate the increase in volume of the cube.
(Given α = 5.0 × 10–4 °C–1).
