Which of the following oxides is amphoteric in nature?
- A$CaO$
- B$CO_2$
- C$SiO_2$
- D$SnO_2$
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Which of the following has a cup-shaped thalamus?
The major product of the following reaction is
$Assertion$ : If collision occurs between two elastic bodies their kinetic energy decreases during the time of collision.
$Reason$ : During collision intermolecular space decreases and hence elastic potential energy increases.
$Reason$ : During collision intermolecular space decreases and hence elastic potential energy increases.
Which of the following acids has the lowest $pK_a$ value?
The structure of $PCC$ is
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