The uncertainty in the position of an electron (mass 9.1x 10-28g) moving with a velocity of 3.0 x 104 cm s-1 accurate up to 0.011%, will be
The enthalpy of hydrogenation of cyclohexene is -119.5 KJ mol-1 if resonance energy of benzene is -150.4 KJ mol-1,its enthalpy of hydrogenation would be
For a reaction at 300 K, enthalpy and entropy changes are -11.5 x 103 J mol-1 and -105J K-1 mol-1 respectively. What is the change in Gibbs free energy?
ΔG = ΔH - TΔS
= -(115 x 10)3 - [300 (-105)]
= 11500 - (- 31500) = 20000 J mol-1
= 20 kJ mol-1
IUPAC name of is
The number of unpaired electrons calculated in [ Co(NH3)6]3+ and [ CoF6 ]3- are
The electronic configuration of four different elements is given below. Identify the group IV element among these
The number of stereoisomers possible for a compound of the molecular formula
CH3 ― CH ═ CH ― CH (OH) ― Me is
In the following carbocation, H/CH3 that is most likely to migrate to the positively charged carbon is
Which set of products is expected on reductive ozonolysis of the following diolefin?
The IUPAC name of neo-pentane is
The major product (70%-80%) of reaction between m-dinitrobenzene with (NH₄)₂ Sx is
Which statement are correct about osmotic pressure (P) volume (V) and temperature (T) ?
Which statement(s) about cathode rays is/are correct?
Which of following compounds on hydrolysis produce HCl ?
Which of the following statement(s) is (are) wrong?
Be and Al resembles in