List of top Chemistry Questions on Acidic and Basic Oxides

The number of amphoteric oxides in the following is \[ CO_2,\ GeO_2,\ SnO_2,\ PbO_2,\ CO,\ GeO,\ SnO,\ PbO \]
Given below are two statements :
Statement I : The number of pairs among $[Al_2O_3, Cr_2O_3]$, $[Cl_2O_7, Mn_2O_7]$, $[Na_2O, V_2O_3]$ and $[CO, N_2O]$ that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4.
Statement II : Among $Na_2O, Al_2O_3, CO$ and $Cl_2O_7$, the most basic and acidic oxides are $Na_2O$ and $Cl_2O_7$, respectively.
In the light of the above statements, choose the correct answer from the options given below :
5.8 g of Aniline is converted into benzanilide with some reaction sequences. Calculate the mass of benzanilide formed, if percentage yield of reaction is 82%. \[ \text{Ph} - \text{COCl} + \text{PhNH}_2 \xrightarrow{\text{Py}} \text{Benzanilide} \]
Given below are two statements. Statement I: First ionisation enthalpy of Cr is greater than that of Mn. Statement II: Second and third ionisation enthalpies of Cr are less than that of Mn. In the light of above statements, choose the correct option.

Given below are two statements: 
Statement (I): \(\textit{An element in the extreme left of the periodic table forms acidic oxides.}\) 
Statement (II):\( \textit{Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.} In the light of the above statements, choose the correct answer from the options given below:\)

Consider the following oxides: 
V_2O_5, Cr_2O_3, Mn_2O_7, V_2O_3, VO_2 
A number of oxides which are acidic is \( x \). 
Consider the following complex compound: 
[Co(NH_2CH_2CH_2NH_2)_3](SO_4)_3 
The primary valency of the complex is \( y \). 
What is the value of \( x + y \) is?

If \( x |x - 3| + 3 |x - 2| + 1 = 0 \), then the number of real solutions is.
Arrange the following oxides in correct order of their acidic character:
\[ I: N_2O_3, \quad II: P_2O_3, \quad III: N_2O_5, \quad IV: As_2O_3 \]
The set of amphoteric oxides among \(ZnO, Tl_2O_3, In_2O_3, B_2O_3, PbO, SnO_2\) is