Question
What is the difference between 13-15 and 12-16 compounds?
✓
Answer
Group 13-15 compounds, viz., AlP, GaAs, etc. have large covalent character whereas Group 12-16 compounds, viz., ZnS, CdS, HgTe, etc. do not possess covalent character but have sufficient ionic character. However, all of them are semiconductors.
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
State Raoult’s law for solutions of volatile liquid components. Taking a suitable example, explain the meaning of positive deviation from Raoult’s law.
Explain the following line giving one example:
Antibiotics.
Antibiotics.
Write the increasing order of reactivity of following compounds towards nucleophilic
Substitution reaction :
$CH _3 F, CH _3 Cl , CH _3 Br , CH _3- I$
→Substitution reaction :
$CH _3 F, CH _3 Cl , CH _3 Br , CH _3- I$
Calculate the temperature at which the solution containing $54 g$ of glucose, $C_6H_{12}O_6$ in $250 g$ of water will freeze. $(K_b$ for water $= 1.86 \ K \ kg mol^{-1})$
→Write structures of compounds A and B in each of the following reactions:
Explain the following:
Out of noble gases only xenon is known to form established chemical compounds.
Out of noble gases only xenon is known to form established chemical compounds.
Draw the structures of the following:
→- $H_2S_2O_7$
- $XeF_6$
$a.$ Nitrogen gas is soluble in water. At temperature $293 K,$ the value of $K_HiS 76.48$ kbar. How would the solubility of nitrogen vary $($ increase, decrease or remain the same $)$ at a temperature above $293 K_H$ if the value of $K_1$ rises to $88.8$ kbar.
$b.$ Chloroform $($ b.p. $61.2^\circ C)$ and acetone $($ b.p. $56^\circ C)$ are mixed to form an azeotrope. The mole fraction of acetone in this mixture is $0.339.$ Predict whether the boiling point of the azeotrope formed will be $(i) 60^\circ C \ (ii) 64.5^\circ C$ or $(iii)54 ^\circ C.$ Defend your answer with reason.
→$b.$ Chloroform $($ b.p. $61.2^\circ C)$ and acetone $($ b.p. $56^\circ C)$ are mixed to form an azeotrope. The mole fraction of acetone in this mixture is $0.339.$ Predict whether the boiling point of the azeotrope formed will be $(i) 60^\circ C \ (ii) 64.5^\circ C$ or $(iii)54 ^\circ C.$ Defend your answer with reason.
Explain the preparation of carboxylic acid from alkylbenzenes with necessary equations.
What is the following substance? Give one example.
Anionic detergents.
Anionic detergents.