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1. Find the amphoteric oxide?
2. Graphite has a structural similarity with?
3. Which is the correct order of decreasing acidity of Lewis acids?
(A) BBr3 > BCl3 > BF3
(B) BF3 > BCl3 > BBr3
(C) BCl3 > BF3 > BBr3
(D) BBr3 > BF3 > BCl3
4. In the presence of KF, AlF3 is soluble in HF. Find the complex formed?
5. S-S bond is present in which of the ion pairs?
(A) S2O72-, S2O32-
(B) S4O62-, S2O72-
(C) S2O72-, S2O82-
(D) S4O62-, S2O32-
6. Which is the correct order of decreasing bond dissociation enthalpy?
(A) F2 > Cl2 > Br2 > l2
(B) l2 > Br2 > Cl2 > F2
(C) Cl2 > Br2 > F2 > l2
(D) Br2 > l2 > F2 > Cl2
7. Oxygen is not released on heating which of the compounds?
8 Which of the species has a permanent dipole moment?
9. Which of the statement is incorrect for XeO4?
(A) Four p𝜋-d𝜋 bonds are present
(B) Four sp3 – p 𝜎 bonds are present
(C) It has a tetrahedral shape
(D) It has a square shape
10. P4O10 has______ bridging O atoms?
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