List of top Questions asked in TS EAMCET

In the estimation of nitrogen by Kjeldahl's method 0.933 g of an organic compound 'X' was analyzed. Ammonia evolved was absorbed in 60 mL of 0.1 M H$_2$SO$_4$. The unreacted acid requires 20 mL of 0.1 M NaOH for complete neutralization. The compound 'X' is

'X' is the isomer of $\text{C}_6\text{H}_{14}$. It has four primary carbons and two tertiary carbons. 'X' can be prepared from which of the following reaction?

Aniline can be separated from a mixture of chloroform - aniline by a technique X and from aniline - water mixture by technique Y. X and Y respectively are

Which of the following compounds will be suitable for estimation of nitrogen by Kjeldahl's method?
Structures:

Consider the given sequence of reactions.
\(\text{C}_2\text{H}_6 + \frac{3}{2}\text{O}_2 \xrightarrow[\Delta]{(\text{CH}_3\text{COO})_2\text{Mn}} \text{X} \xrightarrow{\text{Na}} \text{Y}\)
Electrolysis of aqueous solution of Y gives gases P and Q at anode. P and Q are respectively.

IUPAC names of benzene derivatives are respectively:

Which of the following is an example of electrophilic substitution reaction?

Ethylene on reaction with cold, dilute alkaline \(\text{KMnO}_4\) at 273 K gives a compound 'P'. This on polymerisation with which of the following gives dacron?

The number of chlorine (Cl) atoms in the structure of DDT molecule is

The amine / salt of amine which gives positive test with a mixture of chloroform and alcoholic KOH solution is

The correct IUPAC name of the following compound is

Which purification method is generally used for a high boiling organic liquid compound, which decompose below its boiling point?

What is the major product 'Z' in the given reaction sequence?

Ionization enthalpies of the elements X, Y, Z having successive atomic numbers respectively are 2080, 496, 737 kJ mol$^{-1}$. X, Y, Z are:

Correct statements regarding halides of group 14 elements:
I. Stability of dihalides: SiX$_2$ > GeX$_2$ > SnX$_2$ > PbX$_2$
II. SnF$_4$, PbF$_4$ are ionic
III. PbI$_4$ does not exist

The IUPAC name of the following compound is

A solid mixture weighing $5 \text{ g}$ contains equal number of moles of $\text{Na}_2\text{CO}_3$ and $\text{NaHCO}_3$. This solid mixture was dissolved in $1 \text{ L}$ of water. What is the volume (in $\text{mL}$) of $0.1 \text{ M } \text{HCl}$ required to completely react with this $1 \text{ L}$ mixture solution?

Identify the pair of drugs which act as antihistamines.

Oxoacids of phosphorus are formed in the following reactions. The acid formed in which of the following reactions does contain P - P bond?

The dibasic oxoacid of phosphorus on disproportionation gives two products A and B. A and B are respectively

The polymer chains are held together by hydrogen bonding in a polymer X. Polymer X is formed from monomers Y and Z. What are Y and Z?

A sample of water contains $\text{Mg}(\text{HCO}_3)_2$ and $\text{Ca}(\text{HCO}_3)_2$. On boiling this water, these hydrogen carbonates are removed as precipitates. The precipitates are

Consider the following redox reaction in basic medium. \( x\text{Cr(OH)}_3 + y(\text{IO}_3)^- + z(\text{OH})^- \rightarrow a(\text{CrO}_4)^{2-} + b(\text{I})^- + c(\text{H}_2\text{O}) \). The incorrect option about it is

Boron trifluoride on reaction with lithium aluminium hydride in ether gives LiF, AlF\(_3\) and X. X on reaction with NH\(_3\) gives Y. Y on further heating gives a compound Z. The number of \(\sigma\)-bonds and \(\pi\)-bonds in Z are x and y respectively. (x+y) is equal to

Polymer X is an example of polyester and Y is an example of polyamide. X and Y are respectively