Question
Write down three differences between crystalline and amorphous solids.
✓
Answer
Distinction between Crystalline and Amorphous Solids
| Property | Crystalline Solids | Amorphous Solids |
| 1. Shape | Definite characteri-stics and geometrical shape. | Irregular shape. |
| 2. M.Pt. | Melt at a sharp and characteristics temp. | Gradually soften over a range of temperature. |
| 3. Cleavage property | When cut with a sharp edged tool, they split into the pieces and the newly generated surfaces are plain and smooth. | When cut with sharp a edged tool, they cut into two pieces with irregular surfaces. |
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are enantiomers? Draw the structures of the possible enantiomers of 3-methylpent-1-ene.
a. Give the chemical reaction involved when $p-$ nitrotoluene undergoes Etard reaction.
b. Why does Benzoic acid exist as a dimer in an aprotic solvent?
c. Benzene on reaction with methylchloride in the presence of anhydrous $\ce{AlCl3}$ forms toluene. What is the expected outcome if benzene is replaced by benzoic acid? Give a reason for your answer.
→b. Why does Benzoic acid exist as a dimer in an aprotic solvent?
c. Benzene on reaction with methylchloride in the presence of anhydrous $\ce{AlCl3}$ forms toluene. What is the expected outcome if benzene is replaced by benzoic acid? Give a reason for your answer.
Explain Halogenation, Nitration, Sulphonation and Friedel crafts reaction of chlorobenzene.
Carbonyl group is present in carboxylic acids and their derivatives, yet they do not show the properties of carboxylic group, why?
Calculate the standard cell potentials of galvanic cell in which the following reactions take place:
$2Cr(s) + 3Cd^{2+}(aq) \rightarrow 2Cr^{3+}(aq) + 3Cd$
Calculate the $\triangle_\text{r}\text{G}^\ominus$ and equilibrium constant of the reactions.
→$2Cr(s) + 3Cd^{2+}(aq) \rightarrow 2Cr^{3+}(aq) + 3Cd$
Calculate the $\triangle_\text{r}\text{G}^\ominus$ and equilibrium constant of the reactions.
The rate for the reaction $R\rightarrow P$ is rate $= k[R].$ It has been shown graphically below. What is rate constant for the reaction?
→For the reaction:
$2 A+B \rightarrow A_2 B$
the rate $= k [ A ][ B ]^2$ with $k =2.0 \times 10^{-6} mol^{-2} L^2 s^{-1}$. Calculate the initial rate of the reaction when $[ A ]=0.1 mol$ $L ^{-1},[B]=0.2 mol L ^{-1}$. Calculate the rate of reaction after $[ A ]$ is reduced to $0.06 mol L ^{-1}$.
→$2 A+B \rightarrow A_2 B$
the rate $= k [ A ][ B ]^2$ with $k =2.0 \times 10^{-6} mol^{-2} L^2 s^{-1}$. Calculate the initial rate of the reaction when $[ A ]=0.1 mol$ $L ^{-1},[B]=0.2 mol L ^{-1}$. Calculate the rate of reaction after $[ A ]$ is reduced to $0.06 mol L ^{-1}$.
Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law, with $t_{1/2} = 3.00$ hours. What fraction of sample of sucrose remains after $8$ hours?
→Give Uses of aldehydes and ketones
How will you bring about the following conversions?
Iso-propyl chloride to n-propyl chloride.
Iso-propyl chloride to n-propyl chloride.