Home
Class 12
CHEMISTRY
Assertion (A): Calomel is a chemical com...

Assertion (A): Calomel is a chemical compound whereas brass is a mixture.
Reason (R ): Calomel always contains 5.6 times as much mercury as chlorine by weight. Brass can be made with widely different ratios of copper and zine.

A

Statement 1 is true, statement 2 is true, statement 2 is a correct explanation for statement 3

B

Statement 1 is true, statement 2 is true, statement 2 is not a correct explanation for statement 3

C

Statement 1 is true, statement 2 is false

D

Statement 1 is false, statement 2 is true

Text Solution

Verified by Experts

The correct Answer is:
A
Calomel is `Hg_(2) Cl_(2)`. (Atomic weight of Hg and Cl are =200.59 and 35.5 g, respectively)
Ratio of weights of Hg and `Cl=(2xx200.59)/(2xx35.5)=5.6`.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise JEE Section (Comprehension type questions)|11 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise JEE Section (Integer type questions)|16 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise JEE Section (More than one correct answer)|12 Videos

  • SOLUTION

    ERRORLESS |Exercise JEE SECTION (JEE (Advanced)2018) (Numeric answer type questions)|3 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    ERRORLESS |Exercise JEE section (JEE (Advanced) 2018) Numeric answer type questions|2 Videos

Similar Questions

Explore conceptually related problems

In each of the following two questions two statements are given one labelled as the Assertion(A) or Statement I and the other labelled as the reason (R) or statement II. Examine these statements carefully and mark the correct choice as per following instructions Assertion (A) - Pure water obtained from different sources, such as river, well, spring, sea etc. always contains hydrogen and oxygen in ratio of 1:8 by mass Reason (R) - Mass of reactants and products during chemical or physical changes is always constant

Assertion: The number of different number plates which can be made if the number plte contain three letters of the English alphabet followied by athree digit number is (26)^3xx(900) (if represents are allowed) Reason: The number of permutationis of n different things taken r at time when repetitios are allowed is n^r . (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not te correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

A container of volume V = 16.6 litre contains a mixture of hydrogen and helium at a temperature of 300 K. The pressure in the container is 6 x× 10^(5) Pa and mass of the mixture is 10 g. Let f_(1) " and " f_(2) be the number of collisions made by the hydrogen and helium molecules with unit area of the container wall in unit time. Calculate the ratio (f_(1))/(f_(2)) . [R = 8.3 "J mol"^(–1) K^(–1)] .