Chemistry
GATE CY format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 394. Imported answers require independent review unless marked reviewed.
Question 46
Open questionCYMCQ2 marksNeeds review
For a reaction between neutral molecules X and Y in a solution at temperature T, the measured rate of reaction is equal to the rate of diffusion. Assume X is stationary and Y is moving. If the diameter of the molecule X is five times that of Y, then the rate constant for the reaction is
(
is viscosity of the solvent;
is Boltzmann constant)Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
Open questionCYMCQ2 marksNeeds review
For the following electrochemical cells, liquid junction potentials affect the cell potential (
).I. Electrode-1 | 0.1 M KCl || 0.1 M NaCl | Electrode-2
II. Electrode-1 | 0.1 M HCl || 0.01 M HCl | Electrode-2
III. Electrode-1 | 0.01 M KCl || 0.01 M HCl | Electrode-2
The correct order of their
at 25 °C isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 1
Open questionGAMCQ1 markNeeds review
Courage : Bravery :: Yearning : __________
Select the most appropriate option to complete the analogy.
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 2
Open questionGAMCQ1 markNeeds review
We __________ tennis in the lawn when it suddenly started to rain.
Select the most appropriate option to complete the above sentence.
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 3
Open questionGAMCQ1 markNeeds review
A 4 × 4 digital image has pixel intensities (
) as shown in the figure. The number of pixels with
is: 
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 4
Open questionGAMCQ1 markNeeds review
In the given figure, the numbers associated with the rectangle, triangle, and ellipse are 1, 2, and 3, respectively. Which one among the given options is the most appropriate combination of P, Q, and R?

Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 5
Open questionGAMCQ1 markNeeds review
A rectangle has a length L and a width W, where L > W. If the width, W, is increased by 10%, which one of the following statements is correct for all values of L and W?
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 6
Open questionGAMCQ2 marksNeeds review
Column-I has statements made by Shantha; and, Column-II has responses given by Kanishk.
Column-I:
P. This house is in a mess.
Q. I am not happy with the marks given to me.
R. Politics is a subject I avoid talking about.
S. I don’t know what this word means.
Column-II:
Alright, I won’t bring it up during our conversations.
Well, you can easily look it up.
No problem, let me clear it up for you.
Don’t worry, I will take it up with your teacher.
Identify the option that has the correct match between Column-I and Column-II.
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 7
Open questionGAMCQ2 marksNeeds review
Weight of a person can be expressed as a function of their age. The function usually varies from person to person. Suppose this function is identical for two brothers, and it monotonically increases till the age of 50 years and then it monotonically decreases. Let
and
(in years) denote the ages of the brothers and
.Which one of the following statements is correct about their age on the day when they attain the same weight?
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 8
Open questionGAMCQ2 marksNeeds review
A regular dodecagon (12-sided regular polygon) is inscribed in a circle of radius r cm as shown in the figure. The side of the dodecagon is d cm. All the triangles (numbered 1 to 12) in the figure are used to form squares of side r cm and each numbered triangle is used only once to form a square.
The number of squares that can be formed and the number of triangles required to form each square, respectively, are:
Note: The figure shown is representative.

Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer