Solution :Velociyt $v= v_0 sm wt$accleration $=\large\frac{dv}{dt}$$=a=a_0cos wt$$\therefore $ phase...

solution :Refractive index $= \large\frac{\text{Velocity in air}}{\text{velocity in medium }}$$\qqua...

Solution :$E= Radiation \alpha T^4$ Where T is in kelvin$E \alpha (727+273)^4$$E \alpha 1000^4$

Solution :Accleration due to gravity $g =\large\frac{M}{R^2}$$g \alpha \large\frac{M}{R^2}$$\large\f...

Solution :$2CuSO_4+4Kl \to Cu_2l_2+ 2 K_2SO_4+I_2$This liberated $I_2$​ is titrated with&n

Solution :More the negative value of standard reduction potential, higher is the reducing power and ...

Solution :This transformation is related to a change in crystalline structure of tin. This change in...

Solution :$AlCl_3$ is covalent but in water, it becomes ionic to larger hydration energy of $Al^{3+}...

Solution :Due to diagonal relationship, Be and Al exhibits similar properties But covalency of&...

Solution :Galena (ZnS) is a sulphide ore. Galena is best concentrated by fr...

One mole of magnesium nitride on the reaction with an excess of water gives two moles of ammonia and...

solution :Normal optimum temperature of enzymes is between $25^{\circ}C$ to $40^{\circ}C$. Henc...

Solution :Helium is twice as heavy as hydrogen; its lifting power is 92% of that of hydrogen. H...

Solution :$Zn_{(s)}+2H^{+}_{(aq)} \rightleftharpoons$$ Zn^{2+}_{(aq)}+H_2{(g)}$$E_{cell}=E^{\circ}_{...

Solution :$\bigwedge^{\circ} Nacl =\bigwedge^{\circ}_{Na}+\bigwedge^{\circ} _{CL^{-}}$ -------------...

Solution :Combustion of Carbon:$C + O_2 \to CO_2 ; \Delta H1 = – 393.5 kJ / mole$Combustion of Carbo

Solution : $E_{cell}=E^{\circ} _{cell}- \large\frac{0.0591}{n}$$\log K_c$$0=0.591-\large\frac{0.0591...

Solution : $MX_4 \leftrightharpoons M^{+} +4X^{-}$If Solubility is s, then $K_{sp} =[M^{+}][X^{-}]^4...

Solution :$E_{cell}^0 =E(OPS_n/Sn^{2+})+E_{Fe^{2+}}+Fe^{2+}$$\qquad= 0.14 +0.77 =0.91\;V$

Solution :From the rate equation rate =k[A][B], we can say that the reaction is first order in ...

Solution :$H_2(g) +O_2(g) \to 240(g)$$K_1= 4 \times 10^{-4}$$NO= \large\frac{1}{2}$$H_2(g) +\large\f...

Solution :$K_p=K_c \times (RT)^{\Delta ng}$where:$K_p$= equilibrium constant in terms of pressure$K_...

Solution :The equilibrium reaction is $H_2(g) +I_2(g) \to 2HI(g)$Assume that the total volume of the...

Solution :The concentration of the reactant decreases from 0.8M to 0.4M in 15 minutes,i.e. t1/2...

Solution :Direct conversion of chemical energy to electric energy can be made considerably more effi...

Solution :Answer: -0.9 kJ$W = - P \Delta V$$P = 10^5 Nm^{-2}$ = 1 atm$\Delta V$ = 10 -1 = 9 Litres [...

Solution :Schottky defect is indicated in the diagram as equal number of sodium cation and chloride ...

Solution :Benzene in methanol breaks the H - bonding of the alcohol making its boiling point decreas...

Solution :In $CH_3CH_2OH$, there is intermolecules H- bonding while it is absent in isomeric ether $...

Solution :$H_3PO_3$ is a diabasic acid (containing two ionizable protons attached to O directly)$H_3...

Solution :Moles of urea $= \large\frac{6.02 \times 10^{20}}{6.02 \times 10^{23}}$$=10^{-3}\; moles$C...

Solution :The concept of conjugate Acid-Base pair was given by Lowry-Bronsted Theory.According to th...

Solution :b = $4N\times V$i.e total volume occupied by molecules one mole of gas in motionHence answ...

Elecrons gain enthalpy- when an electron is added to neutral gaseous atom to convert it into a negat...

Solution :Greater the number of solute particles in the solution, higher the elevation in boiling po...

Solution :( B ) $sp^3d^2$ hybridization$sp^3d^2$ hybridization has an octahedral structure such that...

Kinetic Energy = $\large\frac{3}{2}RT$$E_1 = \large\frac{3}{2}\times R\times293$$E_2 = \large\frac{3...

Solution :+7 state can be achieved by give d-electrons and two s-electrons.Hence (a) is the correct ...

Solution :$BF_{4−}$​ has regular tetrahedral structure,

solution :Each oxygen atom is $sp_3$ hybridised. There are six electrons in the outermost shell of o...

Solution :Electron affinity is a measure of the attraction between the incoming electron and the nuc...

Solution :Higher the bond order, shorter will be the bond length. Thus, NO+ is having higher bo...

Solution :As electronegativity difference between element and oxygen decreases the acidic character ...

Each of $K^+,Cl^-,Ca^{2+},Sc^{3+}$ has 18 electrons.Hence (b) is the correct answer.

Solution :Bond angle in $SiH_4$ is $109. 28^1 (sp_3$-hybridisation with no lone ...

$\large\frac{1}{\lambda}=$$R_H\big[\large\frac{1}{\infty}-\frac{1}{1^2}\big]$$\therefore \lambda=\la...

Solution :where z/e ratio increases, the size decreases and when z/e ratio decreases the size increa...

Solution :Cr(Zn=24)electronic configuration is $:1_{s2}2_{s2}2_{p6}3_{s2}3_{p6}4_{s1}3_{d5}$So, numb...

Solution :For 4f orbital electrons,n = 4l = 3 (because 0 1 2 3 )m = +3, +2, +1, ...

solution :https://clay6.com/mpaimg/3_c20.jpg