Download App

Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations1 Mark
MCQ
Complete the sentence. During a chemical reaction, atoms $...........$
  • A
    Can appear
  • B
    Can disappear
  • ✓
    Get rearranged
  • D
    Stop moving and vibrating
✓

Answer

Correct option: C.
Get rearranged

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" from Chemical Reactions and Equations→Chemical Reactions and Equations — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

Directions : In the following questions, the Assertions $(A)$ and Reason $(s) \ (R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion : Impulse travels from dendrite to cell body and then along the axon to its end.
Reason : Information acquired at the end of the dendrite tip of a nerve cell sets of an electric impulse.
→
There are four fuels which all contain only carbon and hydrogen. The fuel having highest calorific value will be one which has:
→
Which of the following is the correct order of the atomic radii of the elements oxygen, fluorine and nitrogen?
→
A converging lens is used to produce an image of an object on a screen,object on a screen. What change is needed for the image to be formed nearer to the lens?
→
The resistance of the conductor is $R.$ If the length is doubled by stretching the wire, then its new resistance willbet be:
→
Three beakers labelled as $A, B$ and $C$ each containing $25mL$ of water were taken. A small amount of $\ce{NaOH},$ anhydrous $\mathrm{CuSO}_4$ and $\ce{NaCl}$ were added to the beakers $A, B$ and $C$ respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers $A$ and $B,$ whereas in case of beaker $C, $ the temperature of the solution falls. Which one of the following statement $(s)$ is $($are$)$ correct?
  1. In beakers $A$ and $B$, exothermic process has occurred.
  2. In beakers $A $ and $B,$ endothermic process has occurred.
  3. In beaker $C,$ exothermic process has occurred.
  4. In beaker $C,$ endothermic process has occurred.
→
Which part of the solar cooker is responsible for green house effect?
→
The number of oxygen molecules used in the combustion of $1$ molecule of ethanol is?
→
$1.54$ is combined with another prism $p_2$ made from glass of refractive index $1.92$ to produce dispersion without deviation. Then the angle of prism $p_2$ is
→
A cross between two individuals results in a ratio of $9 : 3 : 3 : 1$ for four possible phenotypes of progeny. This is an example of a :
→