List of top Chemistry Questions asked in AP EAPCET

What is the drug used to control depression and hypertension?

How many of the following molecules / ions have a trigonal planar structure? 
\( \text{BO}_3^{3-}, \, \text{NH}_3, \, \text{PCl}_3, \, \text{BCl}_3, \, \text{ClF}_3, \, \text{XeO}_3 \)

The correct order of increasing bond lengths of C--H, O--H, C--C, and H--H is
The \(E^\circ_{{M}^+_{(aq)}}/{M}_{(s)}\) is highest with negative sign for alkali metal 'x' and lowest with negative sign for alkali metal 'y'. In flame test, the characteristic colours of 'x' and 'y' are respectively:
Which of the following are carbonate ores?
I. Siderite
II. Kaolinite
III. Calamine
IV. Sphalerite
Identify the ion (hydrated in solution) which is not correctly matched with its spin only magnetic moment (in BM) given in brackets:
Identify the pair which is not correctly matched:
One mole of ethanol (C₂H₅OH) was completely burnt in oxygen to form CO₂(g) and H₂O(l). What is the \(\Delta H_f^{\circ}\) (in kJ/mol) for this reaction?
At 300 K, vapour pressure of pure liquid A is 70 mm Hg. It forms an ideal solution with liquid B. Mole fraction of B = 0.2 and total vapour pressure of solution = 84 mm Hg. What is vapour pressure (in mm) of pure B?
At what temperature (in K) the rms velocity of SO\(_2\) molecules is equal to rms velocity of O\(_2\) molecules at \(27 \, ^\circ\text{C}\)?
The composition of a sample of wustite is \( \text{Fe}_{0.93} \text{O}_{1.00} \). Percentage of iron in the form of \( \text{Fe}^{3+} \) ion is nearly:
An element crystallizes in bcc lattice. The atomic radius of the element is 2.598 \AA. What is the volume (in cm$^3$) of one unit cell?
Choose the incorrect statement from the following:
Identify the artificial sweetener which has highest sweetness value compared to cane sugar
In acid medium, dichromate oxidizes sulphite to sulphate. In this redox reaction, the oxidation state of sulphur changes from \(x\) to \(y\). What is the value of \(x + y\)?
Among the following compounds, which one is not responsible for the depletion of ozone layer?
A and B are ideal gases. At T(K), 2 L of A with a pressure of 1 bar is mixed with 4 L of B with a pressure of P\(_B\) bar in a 100 L flask. The pressure exerted by gaseous mixture is 0.1 bar. What is the value of P\(_B\) in bar?
Identify the correct set of molecules with zero dipole moment.

What are X and Y in the following reaction sequence?

The structure of the product 'Z' in the reaction sequence is: \[ \text{CHO} \] \[ \mid \] \[

Match the following molecules with their bond angles:

List-I (Molecule) List-II (Bond angle) 
A) \(\mathrm{NH}_3\) I) 102.2° 
B) \(\mathrm{O}_3\) II) 107.8° 
C) \(\mathrm{S}_6\) III) 93.6° 
D) \(\mathrm{PH}_3\) IV) 117° 
Which of the following is not an antibiotic?
The IUPAC name of the complex shown below is:
K₃[Co(COₓ)₃]
1.84 g of a mixture of CaCO\(_3\) and MgCO\(_3\) is strongly heated to get a residue of 0.96 g. The percentage of CaCO\(_3\) in the mixture is

Which of the following statements are correct regarding lithium and magnesium? 
I) They react slowly with water 
II) Their bicarbonates are solids 
III) Their chlorides are not soluble in ethanol 
IV) Their nitrates decompose easily on heating