Solution :DDT is prepared by heating chlorobenzene and chloral with concentrated sulphuric acid.

Solution : In DNA, four bases have been found. They are adenine (A), guanine (G), cytosine (C) and t...

Solution :Electron withdrawing group increases the acidity of benzoic acid, o - isomer will have hig...

https://clay6.com/mpaimg/jee4.jpg

Solution :$Cl^{−}$ is the best leaving group being the weakest nucleophile out of $NH^{2−}​,Cl^{−},O

Solution :The compounds cis-1, 2 dichlorocyclobutane and 2, 3 - dichlorobutane contains a plane of s...

Solution :https://clay6.com/mpaimg/jee2.jpg

Among the isomeric alkanes, the normal isomer has a higher boiling point than the branched chain is...

Solution : Equivalents of $NH_3$ evolved $\qquad= \large\frac{100 \times 0.1 \times 2}{1000}-\frac{2...

solution :The carbon and nitrogen present in the organic compound on fusion with sodium metal gives ...

Solution :Using first order kinetics equation at t=24 hours$\large\frac{ln_2}{4} $$\times 24 =ln \bi...

Solution :The number of unpaired electrons in the compounds$[MnCl_4]^{2-} - 5$$[CoCl_4]^{-2}-3$$[Fe(...

Solution : $[Co(en)_ 2 Cl_ 2 ] ^{+}$  shows geometrical as well as optical isomerism.

Solution :Answer: The +4 oxidation state of cerium is not known in solutions

Solution :Chlorophylls are green pigments in plants and contain calcium is incorrect because it Cont...

Solution :[Atomic nos.: Mn = 25, Fe = 26, Co = 27, Ni = 28]

Solution :The number of atoms of the ligands that are directly bound to the central metal atom or io...

Solution : $CN^{-}$ is a better complexing agent (C) as well as a reducing agent (A) Thus properties...

Solution : For cubic crystal structure $a=b=c$ and $ \alpha = \beta =\gamma=90^{\circ}$

Solution : The logic gate represents $Y=A+B$$\qquad= A+B$It us an OR gate

solution : In common Emitter emplifier volage gain $50 =\beta [R_0/R_n]$Input impedence =$ 100 \omeg...

The material is a p- type semiconductors as there are more holes them electrons, the holes are the m...

Solution:Total energy in the first exited state $=\large\frac{13.6}{n^2}=\frac{-13.6}{2^2}$$n=2$$\qq...

Solution : Number of nucleus after any time t is given by $N= N_0 e^{-\lambda C }$Decay constant $A=...

Solution :A nucleus $^A_Z X$ has mass represented by $M(A,Z)$. If $M_p$ and $M_n$ denote the mass of...

In a rasio active decay preocess , the negetivity charged emitted p particel are the electrons produ...

Solution : s $^{27}_{13}Al$ has Radius $R_{AR}=3.6 \;fm$we have $R= R_0 A^{1/3}$$\large\frac{R_{Al}...

Solution : Velocity of ion can be calcaulted using $\large\frac{1}{2}$$mv^2=qv$$v^2=\large\frac{2qV}...

Solution :Frequency of larger $\gamma =6.0 \times 10^{14}\;Hz$Power P$= 2\times 10^{-3}\;W$Number of...

Solution : Intensity or number of photo electrons $\alpha \large\frac{1}{(distance)^2}$$\large\frac{...

Above curic temperature ferromagnetic material behave like a paramagnetic material .

Solution :Bulb has 100 W,110VMering has 220 Vcurrent $=0.5\;amp$Efficiency $=\large\frac{V_s I_s}{V_...

Solution :Maximum current flowa at resourance At resonance $w_o=\large\frac{1}{\sqrt{EC}}$=> $ w^...

Solution :Flux $\phi=\phi _0 +4t$Induced emf in primary coil $=E_p= \large\frac{d \phi}{dt}$$\qquad=...

Solution : When a charged particle is projected in a magnetic field it moves in a circular path

solution : Charged particle of moving in a circle with uniform speed V , the time taken $r= \large\f...

Solution :Time period of the motion of a charged particle q in a magnetic field B moving with a cons...

Solution :Since the potential , difference is same across both resistors $100 \times 13=650 \times R...

Solution: For balance wheatstone bridge circuit $P=Q=R=2-2$Effective resistance in the 4th arm $\la...

Solution :Temperature of cold junction $T_c=0^{\circ}C$Temperature of hot junction $T_H=T_1^{\circ}C...

Solution :Mass of substance deposited$m=ZIt$$I=I.S.A,t= 10 minutes ;Z_{cu}=30 \times 10^{-5}$$m= 30 ...

Solution : $6 \Omega$ ressitor and $3 \Omega$ resistor are in parallel $\large\frac{1}{R}=\frac{1}{6...

Solution : Work done in charging a condence of capacitance C and potential V$W_1=\large\frac{1}{2}$...

The charge are arranged as shown the -q,+q forms a dipole along y axis and another -q,+q forms a dip...

Solution :Total flux limited with the cylinder is $\phi _{Total} =\large\frac{q}{\in_0}$$\phi_{total...

Solution : Work done = change in potential energy $\qquad = Qv_D -Qv_C$Potential at C =0 because it ...

Solution :When light say hits the surface at the critical angle , the refracted ray grazes the surfa...

Maxwell's findings -The magnetic field oscillates in phase with the electric field. In other words, ...

solution :Given $x= a \sin wt$When $x =\large\frac{a}{2}$$\large\frac{a}{2} $$=a \sin wt => \sin ...

Solution :For a simpke harmonic motion $K.E= K_0 \cos ^2 wt$Maximum $K.E =K_0$ when $(\cos^2wt)=1$$\...