Download App

Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
When mass is enclosed in a system and no transfer of material and energy is allowed in or out, it's $ ........ $ will never change.
  • A
    Quality
  • ✓
    Quantity
  • C
    Temperature
  • D
    Shape
✓

Answer

Correct option: B.
Quantity
The law of conservation of mass states: Mass can neither be created nor destroyed in a chemical reaction. According to this law mass of an isolated system will remain constant over time. This means when mass is enclosed in a system and no transfer of material and energy is allowed in or out, its quantity will never change.

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 "M.C.Q (1 Marks)" from Some Basic Concepts of Chemistry→Some Basic Concepts of Chemistry — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Elements of atomic number $6$ is placed in
→
What is the $pH$ of the resulting solution when equal volumes of $0.1\, M\, NaOH$ and $0.01\, M\, HCl$ are mixed?
→
The volume of $0.5M$ aqueous $\ce{NaOH}$ solution required to neutralize $10\ ml$ of $2M$ aqueous $\ce{HCl}$ solution is :
→
Boron form covalent compound due to
→
Assertion : $\Delta H$ and $\Delta E$ are almost same for the reaction $N_2 (g) + O_2 (g)  \rightleftharpoons  2NO(g)$
Reason : All reactants and products are gases.
→
Incorrect order of bond angle is
→
Which of the following is not permissible arrangement of electrons in an atom
→
A gas decolourised by $KMn{O_4}$ solution but gives no precipitate with ammoniacal cuprous chloride is
→
Which of the following pair represent pair of diastereomers ?
→
Which can exist in meso form?
→