25 mL, 0.2 M Ca(OH)2 is neutralised by 10 mL of 1 M HCI. Then pH of resulting solution is
1.37
9
12
7
D.
7
Number of millimoles of Ca(OH)2 = N1V1 = 2 N1 V1 = 2 0.2 25 = 10
Number of millimoles of HCl = N2V2 = 10 1 = 10
As, no. of millimoles of Ca(OH)2 = no. of millimoles of base
Acid is completely neutralised by base forming a neutral solution.
Therefore, pH of the resulting solution is 7.
Which of the following is not a thermodynamic function?
Internal energy
Work done
Enthalpy
Entropy
For a first order gas phase reaction-
A(g) 2B(g) + C(g)
P0 be initial pressure of A and P, the total pressure at time 't'. Integrated rate equation is
Assertion : H2S is less acidic than H2Te.
Reason : Te has larger, radius than S.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion : R3P=O exists but R3N=O does not exist.
Reason : P is more electronegative than N.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion : AgCl is more soluble in NH3 than in water.
Reason : Ammonia is more polar than water.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Assertion : Helium is used in diving apparatus.
Reason : Solubility of helium is less in blood.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion : A reaction is spontaneous if Ecell = +ve.
Reason : For Ecell = +ve, G is always -ve.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false