Download App

Thermodynamics — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
MCQ
In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion : An isolated system is the one which can neither exchange matter nor energy with the surroundings.
Reason : It should be noted that every system is perfectly isolated.
  • A
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  • ✓
    Assertion is true but Reason is false.
  • D
    Both Assertion and Reason are false.
✓

Answer

Correct option: C.
Assertion is true but Reason is false.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Thermodynamics→Thermodynamics — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

$\mathrm{Fe}+\mathrm{Cd}^{2+} \rightarrow \mathrm{Cd}+\mathrm{Fe}^{2+}$ will this reaction take place or not?
$\text{E}^0_\frac{\text{Fe}^{2+}}{\text{Fe}}=-0.44\text{V}$
$\text{E}^0_\frac{\text{Cd}^{2+}}{\text{Cd}}=-0.40\text{V}$
→
$\mathrm{CH}_4(\mathrm{~g})+2 \mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}_2(\mathrm{~g})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{I})$ ; $\Delta\text{H}=-890\text{kJ mol}^{-1}$
What is the calorific or fuel value of 1kg of $\mathrm{CH}_4$?
→
Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation. $\mathrm{C}_6 \mathrm{H}_5-\mathrm{CHO}$.
→
What is the bond angle in $NH _3$ ?
→
Arrange the alkaline earth's metal sulphate in decreasing order of solubility?
→
Name the type of organic reaction involved in the following reaction.
$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}+\mathrm{KOH}(\mathrm{aq}) \rightarrow \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{KI}$
→
Name the isotope of hydrogen which contains equal number of protons and neutrons.
→
Out of NaCl and MgO, which has higher value of lattice energy?
→
For Tribasic acid $K_{a 1}>K_{a 2}>K_{a 3}$ what will happen to the acid strength of polyprotic acids if protons are lost?
→
For the same increase in volume, why work done is more if the gas is allowed to expand reversibly at higher temperature?
→