Glucose forms a silver mirror with Tollen's reagent. This shows a presence of
1 Crore+ students have signed up on EduRev. Have you? Download the App |
In hydrogen atom, energy of first excited state is -3.4 eV. Then find out the K.E. of the electron in the same orbit of hydrogen atom
The energy of an electro-magnetic radiation is 19.875 x 10 − 13 ergs. What is the wave number in cm-1
Which of the following alkyl group has the maximum + I effect?
The least count of an instrument is 0.01cm. Taking all precautions, the most possible error in the measurement can be
The number of equivalents of Na2S2O3 required for the volumetric estimation of one equivalent of Cu2+ is
Which of the following does not have sp2-hybridised carbon?
Which of the following gives maximum energy in metabolic process?
If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then
Which one of the following molecules will have unequal bond lengths around the central atom?
A chemical reaction is catalyzed by a catalyst X. Hence X
As per the modern periodic law the physical and chemical properties of elements are periodic function of their
The heat of combustion of yellow and red phosphorus are -9.91 kJ mol⁻1 and -8.78 kJ mol⁻1 respectively. The heat of conversion of yellow P → red P is
The dark blue colour of the solution formed when excess of ammonia is added to a solution of copper (II) sulphate is due to the presence of the ion :
Which of the following series involves gradual filling of 5f-level?
Which of the following element belongs to the third row transition series?
In which of the following reaction, hydrogen is acting as an oxidising agent?
In electrophilic substitution reactions nitrobenzene is
The process used for the removal of hardness of water is
In which of the following acid-base titration pH is greater than8 at the equivalence point ?
Which of the following compounds will be most easily attacked by an electrophile ?
Which of the following oxides of nitrogen reacts with FeSO₄ to form a dark brown compound?
In the reaction 4HNO₃ + P₄O₁₀ → 4HPO₃ + X, the product X is