Question is ⇒ For a neutral solution (pH = 7), the value of[H+] [OH-] is equal to, Options are ⇒ (A) 0, (B) 1, (C) < 1, (D) > 1, (E) , Leave your comments or Download question paper.

Question is ⇒ For a neutral solution (pH = 7), the value of[H+] [OH-] is equal to, Options are ⇒ (A) 0, (B) 1, (C) < 1, (D) > 1, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	For a neutral solution (pH = 7), the value of[H⁺] [OH^-] is equal to
A.	0 [Wrong Answer]
B.	1 [Correct Answer]
C.	< 1 [Wrong Answer]
D.	> 1 [Wrong Answer]
View Answer 1 -2 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ 1 BTU/ft³ is approximately equal to __________ kcal/m³.
1
9
4
252

⇒ 1 bar is almost equal to __________ atmosphere.
1
10
100
1000

⇒ Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.
1
2
3
4

⇒ The elevation in boiling point of a solution is proportional to the __________ of the solution.
molal concentration
reciprocal of the molal concentration
normality
molarity

⇒ Density of carbon dioxide is __________ kg/Nm³.
44/22400
44/22.4
22.4/44
none of these

⇒ A very dilute solution is prepared by dissolving 'x₁' mole of solute in 'x₂' mole of a solvent. The mole fraction of solute is approximately equal to
x₁/x₂
x₂/x₁
1 - (x₁/x₂)
1/x₂

⇒ Vapor pressure of water at 100°C is about __________ bar.
0.1013
1.013
10.13
101.3

⇒ Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent ?
Temperature
Nature of solute
Pressure
Nature of solvent

⇒ Solutions having the same osmotic pressure are called __________ solutions.
dilute
ideal
isotonic
saturated

⇒ Pick out the wrong unit conversion of calorific value.
1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg.
1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³.
1 BTU/lb = 2.3 kcal/kg.
1 kcal/m³ = 0.1124 BTU/ft³.

⇒ Number of gm moles of solute dissolved in one litre of a solution is called its
equivalent weight
molarity
molality
normality

⇒ At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be
significantly less than 4.69 atm.
nearly equal to 4.69 atm.
significantly more than 4.69 atm.
indeterminate due to lack of data

⇒ Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ?
ΔH = 1 (+ ve)and Δ V = -ve
ΔH = 0
ΔV = 0
both (b) and (c)

⇒ The most convenient way of expressing solution concentration is in terms of
mole fraction
normality
molality
molarity

⇒ Average molecular weight of air is about
21
29
23
79

⇒ The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is
H₂O > C₂H₅OH > CS₂
CS₂ > C₂H₅OH > H₂O
H₂O > CS₂ > C₂H₅OH
CS₂ > H₂O > C₂H₅OH

⇒ 1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.
1
2.42
4.97
none of these

⇒ 2 litres of nitrogen at N.T.P. weighs __________ gms.
14
2.5
28
1.25

⇒ In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
solute concentration
temperature
both(a) & (b)
neither (a) nor (b)

⇒ Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0^-5m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10^-3. Its units are
m/s
cm/s
mole/m².s.Pa
kmole/m².s.Pa

⇒ According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to
T
T^0.5
T^1.5
T²

⇒ The heat capacity of most substances is greater for the __________ state.
solid
liquid
gaseous
none of these

⇒ Raoult's law is not applicable to the
solutes which dissociate or associate in the particular solution.
concentrated solutions.
both(b)&(c)
solutions containing non-volatile solute.

⇒ In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the
total pressure.
absolute humidity at a given temperature.
both (a) and (b).
neither (a) nor (b).

⇒ One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°₂₉₈ = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to
1225
1335
1525
1735

⇒ C_v for monoatomic gases is equal to(where, R = gas constant)
R
1.5 R
2R
3R

⇒ 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is
42737
42738
42739
42769

⇒ Claussius Clapeyron equation applies to the __________ process.
sublimation
melting
vaporisation
all (a), (b) & (c)

⇒ "The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes". This is the __________ law.
Dalton's
Amgat's
GayLussac's
Avogadro's

⇒ The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is
doubled.
halved.
trebled.
unpredictable.