List of top Chemistry Questions asked in TS EAMCET

In the following reaction sequence, what are X and Y respectively? 

 

In bcc lattice containing X and Y type of atoms, X type of atoms are present at the corners and Y type of atoms are present at the centers. In its unit cell, if three atoms are missing in the corners, the formula of the compound is:
Which of the following sequence of reagents converts benzoic acid to benzaldehyde?

Conversion of X to Y in the given reaction corresponds to:

Arrange the following in the increasing order of pKa values. 

A halogen compound X (C\(_4\)H\(_9\)Br) on hydrolysis gave alcohol Y. The alcohol Y undergoes dehydration with 20\% H\(_3\)PO\(_4\) at 358 K. What is X?
Which of the following sequence of reagents convert benzaldehyde to 4-chlorotoluene?
Two statements are given below Statement I: Liquid A and liquid B form a non-ideal solution with positive deviation. \hspace{0.5cm} The interactions between A and B are weaker than A–A and B–B interactions. Statement II: For an ideal solution, \(\Delta_{\text{mix}} H = 2 \text{ kJ mol}^{-1} \); \(\Delta_{\text{mix}} V = 0\).
Possible number of isomers including stereoisomers for an organic compound with the molecular formula \( C_4H_9Br \) is:
In which of the following ionic pairs, the second ion is smaller in size than the first ion?
Observe the following species: (i) \( NH_3 \) (ii) \( AlCl_3 \) (iii) \( SnCl_4 \) (iv) \( CO_2 \) (v) \( Ag^+ \) (vi) \( HSO_4^- \) How many of the above species act as Lewis acids?

Phenatole can be prepared from which of the following reactants?

Consider the following reaction sequence. What are A and B?

What is 'Z' in the given sequence of reactions?

Identify the correct statements about Z: 

I. \(Z\) is an aldehyde. 
II. \(Z\) undergoes Cannizzaro reaction. 
III. \(Z\) gives iodoform test. 
IV. \(Z\) does not give a test with Tollen's reagent.

An organic compound containing phosphorus on oxidation with \( Na_2O_2 \) gives a compound \( X \). When \( X \) is boiled with \( HNO_3 \) and treated with a reagent, it gives a yellow precipitate \( Y \). Identify \( X \) and \( Y \).

Compound ‘A’ on heating with soda lime gives propane. Identify the compound 'A'.

Reaction of conversion of Y to Z in the given reaction corresponds to: 

In the given reaction sequence, identify Z.

Arrange the above carbocations in the order of decreasing stability: 

An organic compound \( C_7H_5N \) on reduction with reagent X gave Y. Reaction of Y with p-toluene sulphonyl chloride gave Z which is insoluble in alkali. X and Y respectively are:
Assertion (A): Aldehydes are more reactive than ketones towards nucleophilic addition reactions.
Reason (R): In aldehydes, the carbonyl carbon is less electrophilic compared to ketones.
10 mL of 0.5 M NaCl is required to coagulate 1L of \( Sb_2S_3 \) sol in 2 hours time. The flocculating value of NaCl (in millimoles) is:
The minimum concentration (ppm) of dissolved oxygen in water that is required for the growth of fish is
Electromagnetic radiation has electric and magnetic field components. These two components: