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Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: t^3 – 2t^2 – 15t
22
Nov
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: t^3 – 2t^2 – 15t Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: t^3 – 2t^2 – [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: t^3 – 2t^2 – 15t ,
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 5t^2 + 12t+ 7
22
Nov
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 5t^2 + 12t+ 7 Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 5t^2 + 12t+ 7 November [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 5t^2 + 12t+ 7 ,
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 3x^2 + 4x – 4
22
Nov
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 3x^2 + 4x – 4 Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 3x^2 + 4x – [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 3x^2 + 4x – 4 ,
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 4x^2 – 3x – 1
22
Nov
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 4x^2 – 3x – 1 Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 4x^2 – 3x – [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 4x^2 – 3x – 1 ,
Are the following statements ‘True’ or ‘False’? Justify your answers. (vii) The only value of k for which the quadratic polynomial kx^2 + x + k has equal zeroes is 1/2.
22
Nov
Are the following statements ‘True’ or ‘False’? Justify your answers. (vii) The only value of k for which the quadratic polynomial kx^2 + x + k has equal zeroes is 1/2. Are the following statements ‘True’ or ‘False’? Justify your answers. (vii) The only value of k for which the quadratic polynomial kx^2 + x [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Are the following statements ‘True’ or ‘False’? Justify your answers. (vii) The only value of k for which the quadratic polynomial kx^2 + x + k has equal zeroes is 1/2. ,
Are the following statements ‘True’ or ‘False’? Justify your answers. (vi) If all three zeroes of a cubic polynomial x^3 + ax^2 – bx + c are positive, then at least one of a, b and c is non-negative.
22
Nov
Are the following statements ‘True’ or ‘False’? Justify your answers. (vi) If all three zeroes of a cubic polynomial x^3 + ax^2 – bx + c are positive, then at least one of a, b and c is non-negative. Are the following statements ‘True’ or ‘False’? Justify your answers. (vi) If all three zeroes of [...]
Posted in: Chapter 2 - Polynomials , Maths , NCERT Class 10 ,
Tags: Are the following statements ‘True’ or ‘False’? Justify your answers. (vi) If all three zeroes of a cubic polynomial x^3 + ax^2 – bx + c are positive , b and c is non-negative. , then at least one of a ,
There exist an equilibrium between solid SrSO 4 and Sr2+ and SO 4 2− ​ion in aqueous medium. The possible equilibrium states are shown in the figure as thick line. Now of the equilibrium is distributed by addition of (a) Sr(NO3 )2 and (b) K2SO4 ​and dotted line represent approach of system towards equilibrium. Match the columns given below
22
Nov
There exist an equilibrium between solid SrSO 4 and Sr2+ and SO 4 2− ​ion in aqueous medium. The possible equilibrium states are shown in the figure as thick line. Now of the equilibrium is distributed by addition of (a) Sr(NO3 )2 and (b) K2SO4 ​and dotted line represent approach of system towards equilibrium. Match [...]
Posted in: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
Tags: A solution is 0.10M in Ba(NO3)2 and 0.10M in Sr(NO3)2. If solid Na2CrO4 is added to the solution , Ksp(SrCrO4)=3.5 × 10^−5] , what is [Ba2+] , when SrCrO4 beings to precipitate? [Ksp(BaCrO4)=1.2×10^−10 ,
The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7)
22
Nov
The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7) The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7) November 22, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium [...]
Posted in: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
Tags: The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7) ,
A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution, what will be the concentration of Cl− when Ag2CrO4 begins to precipitate? (Ksp(AgCl)=10^−10M^2, Ksp(Ag2CrO4)=10^−12M^3)
22
Nov
A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution, what will be the concentration of Cl− when Ag2CrO4 begins to precipitate? (Ksp(AgCl)=10^−10M^2, Ksp(Ag2CrO4)=10^−12M^3) A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution Ksp(Ag2CrO4)=10^−12M^3) what will [...]
Posted in: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
Tags: A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution , Ksp(Ag2CrO4)=10^−12M^3) , what will be the concentration of Cl− when Ag2CrO4 begins to precipitate? (Ksp(AgCl)=10^−10M^2 ,
If 500 ml of 0.4 MAgNO3 is mixed with 50 ml of 2MNH3 solution then what is the concentration of [Ag(NH3)]+ in solution (Kt,[AgNH3]^+ = 10^3,Kf2[Ag(NH3)2]^+=10^4)
22
Nov
If 500 ml of 0.4 MAgNO3 is mixed with 50 ml of 2MNH3 solution then what is the concentration of [Ag(NH3)]+ in solution (Kt,[AgNH3]^+ = 10^3,Kf2[Ag(NH3)2]^+=10^4) [AgNH3]^+ = 10^3 If 500 ml of 0.4 MAgNO3 is mixed with 50 ml of 2MNH3 solution then what is the concentration of [Ag(NH3)]+ in solution (Kt Kf2[Ag(NH3)2]^+=10^4) November [...]
Posted in: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
Tags: [AgNH3]^+ = 10^3 , If 500 ml of 0.4 MAgNO3 is mixed with 50 ml of 2MNH3 solution then what is the concentration of [Ag(NH3)]+ in solution (Kt , Kf2[Ag(NH3)2]^+=10^4) ,