Step 1: Identifying peroxy acids.
Peroxy acids are compounds where the oxygen atom is attached to two other oxygen atoms, and they can be formed from sulfuric acid. is the peroxy acid.
Step 2: Conclusion.
The correct peroxy acid is , corresponding to option (1).
02
PYQ 2016
medium
chemistryID: viteee-2
The correct order of electrophilic substitution for the compounds given above will be
1
2
3
4
Official Solution
Correct Option: (3)
Step 1: Understanding Electrophilic Substitution.
In electrophilic aromatic substitution reactions, electron-donating groups increase the reactivity of the aromatic ring, while electron-withdrawing groups decrease it. The amino group is an electron-donating group, the nitro group is electron-withdrawing, and the carboxyl group is also electron-withdrawing. Therefore, the order of reactivity is . Step 2: Conclusion.
The correct answer is (C), .
03
PYQ 2016
medium
chemistryID: viteee-2
Among the following the incorrect statement is
1
Density of crystals remains unaffected due to Frenkel defect.
2
In BCC unit cell the void space is 32%.
3
Density of crystals decreases due to Schottky defect.
4
Electrical conductivity of semiconductors and metals increases with increase in temperature.
Official Solution
Correct Option: (1)
Step 1: Understanding the Defects.
The Frenkel defect involves the displacement of an ion from its normal position to an interstitial position, which does not change the overall density of the crystal. However, the electrical conductivity can still be affected. The statement in (A) is incorrect because the Frenkel defect does not necessarily leave the density unaffected. Step 2: Conclusion.
The correct answer is (A), Density of crystals remains unaffected due to Frenkel defect.
