NEET Class XI Weekly Mock 11 for NEET & AIIMS Exams

Question 1

Liberation of O₂ when green cells in water are exposed to sunlight in the presence of suitable acceptor is called

Question 2

What will be the effect on phytochrome, if a plant is subjected to continuous light?

Question 3

A rhythmic phenomenon that occurs about every 24 hours is a

Question 4

The plants growing in dark show yellowing in leaves and elongated internodes, this conditions is known as

Question 5

What is the by–product of bacterial photosynthesis?

Question 6

A chemical reaction is at equilibrium when

Question 7

The concentration of a pure solid or liquid phase is not included in the expression of equilibrium constant because

Question 8

According to law of mass action rate of a chemical reaction is proportional to

Question 9

The following equilibrium are given

The equilibrium constant of the reaction

in terms of K₁, K₂ and K₃ is

Question 10

The rate constant for forward and backward reactions of hydrolysis of ester are 1.1 × 10^–2 and 1.5 × 10^–3 per minute respectively. Equilibrium constant from the reaction is

Question 11

The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied ?

Question 12

Copper of fixed volume 'V' is drawn into wire of length 'λ'. When this wire is subjected to a constant force 'F', the extension produced in the wire is 'Δ

. Which of the following graph is a straight line ?

Question 13

The thermo emf E (in volts) of a certain thermocouple is found to vary with Q (in C) according to equation

where Q is temperature of the hot function being kept at 0 °C. Then, the neutral temperature of the thermocouple is

Question 14

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): The stream of water flowing at high speed from a garden hose, pipe tends to spread like a fountain when held vertically up but tends to narrow down when held vertically down.
Reason (R):In any steady flow of an incompressible fluid, the volume flow rate of the fluid remains constant.

Question 15

As shown in figure a simple harmonic motion oscillator having identical four springs has time period