Question
Enlist properties of
i. white phosphorus.
ii. red phosphorus.
i. white phosphorus.
ii. red phosphorus.
✓
Answer
i. Properties of white phosphorus:
- It is translucent white waxy solid.
- It glows in the dark (chemiluminescence).
- It is insoluble in water but dissolves in boiling NaOH solution.
- It is poisonous.
- It is stable and less reactive.
- It is odourless and possess iron grey lustre.
- It does not glow in the dark.
- It is insoluble in water.
- It is nonpoisonous.
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
Calculate the molecular mass of the following in u.
a. $NH_3$
b. $CH_3COOH$
c. $C_2H_5OH$
→a. $NH_3$
b. $CH_3COOH$
c. $C_2H_5OH$
State octet rule. Explain its inadequecies with respect to
a. Incomplete octet
b. Expanded octet
a. Incomplete octet
b. Expanded octet
i. What is dehydrohalogenation reaction?
ii. How is it carried out. Explain with an example.
ii. How is it carried out. Explain with an example.
Describe the shape of s orbital.
Write one point that differentiates nuclear reations from chemical reactions.
Calculate the oxidation number of underlined atoms.
a. $H_2SO_4$
b. $HNO_3$
c. $H_3PO_3$
d. $K_2C_2O_4$
e. $H_2S_4O_6$
f. $Cr_2O_7^{2-}$
g. $NaH_2PO_4$
→a. $H_2SO_4$
b. $HNO_3$
c. $H_3PO_3$
d. $K_2C_2O_4$
e. $H_2S_4O_6$
f. $Cr_2O_7^{2-}$
g. $NaH_2PO_4$
Draw structures of cis-trans isomers for the following:
Explain Dalton’s atomic theory.
Enlist the characteristic features of hybrid orbitals.
Explain the terms: $i.$ Syngas $ii.$ Water-gas shift reaction.
→