Which among the following carboxylic acids is found in Lemon?
What is change in internal energy if a system gains xJ of heat and yJ work is done on it?
Which among the following is not a characteristic of alcohols?
Air column in two identical tubes is vibrating. Tube A has one end closed and tube B has both ends open. Neglecting end correction, the ratio of the fundamental frequency of air column in tube A to that in tube B is
For a particle performing S.H.M. the equation $ \frac{d^2x}{dt^2} + \alpha x = 0 $. Then the time period of the motion will be:
Consider the following statements about interference of light. A – When crest of one wave coincides with crest of another wave at a point, this point is a point of destructive interference. B – Two coherent sources emit wave of same frequency with constant phase difference.Choose the correct option from the following.
A satellite of mass ‘m’ is revolving around the earth of mass ‘M’ in an orbit of radius ‘r’. The angular momentum of the satellite about the centre of orbit will be
Which of the following is not the method of preparation of phenol?
What is the formula for zero order reaction?
What is the product of Riemer-Timer Reaction?
Which elements makes chlorophyll complex?
Find resistance in a delta shape terminal.
A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is
Three isolated metal spheres A, B, C have radius R, 2R, 3R respectively, and same charge Q. UA, UB and UC be the energy density just outside the surface of the spheres. The relation between UA, UB and UC is
Identify the product B in the following reaction.Benzoyl chloride + H2O \(\rightarrow\) B + HCl
How many mole of electrons are required for the reduction of 1 mole of Cr3+ to Cr(s)?
Identify the use of Buna-S from following.
What is the intermediate product obtained in the preparation of phenol from aniline?
What is the quantity of sugar charcoal obtained when 34.2 g sugar is charred using required quantity of conc. sulphuric acid under ideal conditions?
What is the density of water in kgdm–3 if its density in gcm–3 is 0.863?
Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (RH = 109677 cm–1)
Two long parallel wires separated by distance ‘d’ carry currents I1 and I2 in the same direction. They exert a force F on each other. Now the current in one of the wire is increased to three times and its direction is made opposite. The distance between the wires is doubled. The magnitude of force between them is
A condenser of capacity ‘C’ is charged to a potential difference of ‘V1’. The plates of the condenser are then connected to an ideal inductor of inductance ‘L’. The current through an inductor when the potential difference across the condenser reduces to ‘V2’ is
Which is an oxidizing agent in following reaction? Fe(s) + Cu2+(aq) \(\to\) Fe2+(aq) + Cu(s)