Class 12th

How many H-atome can be exchanged by D-atom when the following compound is kept in $\stackrel{\Theta }{O}D/D_{2}O$  solution for long time?

The decomposition of hydrogen peroxide follows first order kinetics.

2H₂O₂(aq) $\stackrel{}{\to }$ 2H₂O $\left(\mathcal{l}\right)$ + O₂(g)

If the volume of O₂ gas liberated at S TP in first 2- minutes of the start of decomposition is 25.00ml, what should be the total volume of O₂ gas (in ml) collected in time, t >> T_1/2. (t_1/2 for the decomposition of H₂O₂ is 10 min)

In “Al” and “Si”, if temperature is changed from normal temperature to 70 K then

Two balls of same mass and carrying equal charge are hung by threads of length $l$ from a fixed support. At electrostatic equilibrium, assuming that angles made by each thread is small, the separation, $x$  between the balls is proportional to:

Kindly consider the following figure

Which reagent can not be used to distinguish t-Butyl alcohol and isopropyl alcohol:

Nylon-66 is obtained by condensation polymerization of-

Which of the following reduction methods is correctly matched against the given metals (commercial process)?

Hydrolysis of sucrose into (+) glucose and (-) fructose is known as-

Select the CORRECT statements?

(i) $\left[Zn{(gly)}_2\right]$  is optically active compound

(ii) ${\left[PdClBr\left(gly\right)\right]}^{\Theta }$  exhibits geometrical isomerism

(iii) ${\left[IrB{r}_4\left(en\right)\right]}^{\Theta }$  exhibits cis trans isomerism        

(iv) ${\left[RhC{l}_2{\left(N{H}_3\right)}_4\right]}^{+}$  number of stereo isomers is equal to number of geometrical isomers