JEE Main Class XI Weekly Mock 11 for JEE & BITSAT Exams

Question 1

Which of the following salts undergoes anionic hydrolysis -

Question 2

A salt is formed when a weak acid of dissociation constant 10^–4 and weak base of dissociation constant 10^–5 are mixed. The pH and degree of hydrolysis of salt solution are -

Question 3

The formula for pH calculation for a salt of C molar ZnCl₂ is -
(Given

,

of Zn(OH)₂)

Question 4

28g of N₂ and 6g of H₂ were mixed. At equilibrium 17g NH₃ was produced. The weight of N₂ and H₂ at equilibrium are respectively -

Question 5

N₂ + 3H₂ 2NH₃ Starting with one mole of nitrogen and 3 moles of hydrogen, at equilibrium 50% of each had reached. If the equilibrium pressure is P, the pressure of hydrogen at equilibrium would be -

Question 6

Let p and q be two statements, Then p ∨ q is false, if

Question 7

The inverse of the proposition (p∧ $Description: E:\KCET-1-Feb\Karnataka_CET2013_files\image547.png$ q) $Description: E:\KCET-1-Feb\Karnataka_CET2013_files\image333.png$ r is

Question 8

If p, q, r are simple propositions with truth value T, F, T, then the truth value of (~p∨q)∧~r⇒p is

Question 9

Given, the concentration of

in 12 samples of a polluted state are as 53, 60, 49, 56, 42, 40, 36, 52, 58, 50, 44 and 58. If the entries of values 44 and 56 were found incorrect, providing the variance doesn’t changes, the correct entries can be-

Question 10

Given 10 data samples 57, 64, 43, 67, X, 47, Y, 44, Z and 49. Values of X, Y and Z are unknown. Mean of above data is 55 and Variance equals to 66.2 for all 10 given data samples. (Coefficient of variation is expressed in percentage).

Question 11

The ratio of hydraulic stress to the corresponding strain is known as

Question 12

A rectangular vessel when full of water, takes 10 min to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water?

Question 13

The cylindrical tube of a spray pump has a cross-section of 8cm² one end of which has 40 fine holes each of area 10^-8 m². If the liquid flows inside the tube with a speed of 0.15 m min^-1 the speed with which the liquid is ejected through the holes is

Question 14

A tank is filled with water of density 1 g cm^-3 and oil of density 0.9 g cm^-3. The height of water layer is 100 cm and of the oil layer is 400 cm. If g = 980 cm s^-2, then the velocity of efflux from an opening in the bottom of the tank is

Question 15

A body floats in a liquid contained in a beaker. If the whole system falls under gravity, then the upthrust on the body due to liquid is