List of top Questions asked in AP EAPCET

Choose the correct statements among the following
I. Diplo haplontic life cycle can be seen in Bryophyte.
II. In Volvox, meiosis in zygote results in haploid spore.
III. Cycas has siphonogamous oogamy.
IV. Mycorrhizal association can be seen in Cycas roots.
Assertion (A): In Nepenthes, the upper petiole is modified as tendril and lower petiole as phyllode and middle lamina as pitcher.
Reason (R): This is to trap insects for their nitrogen requirement.
Identify the correct option from the following
Assertion (A): External fertilization occurs in Angiosperms.
Reason (R): In internal fertilization organisms, egg is formed inside female body.
Identify the correct option from the following
Identify the universal rules of nomenclature among the following
A) Biological names are in Latin and written in italics.
B) The first word to start with small letter for genus.
C) The specific epithet to start with small letter.
D) Each organism name will have two components.
Identify the amide which gives propan-1-amine by Hoffmann bromamide reaction.
What are X and Z in the following reaction sequence? (X forms sodium alkynide) \[ X (C_4H_6) \xrightarrow{{partial reduction}} Y \xrightarrow{H_2O/H^+} Z ({major product}) \]
Which of the following compounds give salt of an acid and alcohol on heating with concentrated KOH?
What is Z in the given reaction sequence? \[ {(1) } B_2H_6 \longrightarrow X \xrightarrow{PCC} Y \xrightarrow{NH_2OH} Z \] \[ {(2) } H_2O, H_2O_2, OH^- \]

What are X and Y respectively, in the following set of reactions? 

What are X and Y respectively in the following set of reactions? 

Identify the pair which is not correctly matched:
Polyacrylonitrile is used as a substitute for wool in making commercial fibres as acrilan. The structure of it is:

Match the following complexes with their number of unpaired electrons:

List-I (Complex) List-II (No. of unpaired electrons) 
A) \([\mathrm{MnCl}_6]^{3-}\) I) 5 
B) \([\mathrm{FeF}_6]^{3-}\) II) 2 
C) \([\mathrm{Mn(CN)}_6]^{3-}\) III) 0 
D) \([\mathrm{Co(C}_2\mathrm{O}_4)_3]^{3-}\) IV) 4 

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° 
A liquid mixture of aniline and 'x' forms a non-ideal solution with negative deviation from Raoult's law. What is 'x'?
What are the mole fractions of glucose and water respectively, in 20% (w/w) aqueous glucose solution? (\(C = 12\,u\); \(O = 16\,u\); \(H = 1\,u\))
A compound consists of atoms A and B. The atoms of B form hcp lattice. The atoms of A occupy \(\frac{1}{3}\) rd of octahedral voids and \(\frac{1}{3}\) rd of tetrahedral voids. What is the molecular formula of the compound?
The correct sequence of reactions involved in the conversion of \(n\)-heptane to benzene is:
Electrolysis of aqueous solution of potassium acetate gives an alkane (x) and \({CO}_2\) (y) at anode. The volume ratio of these two gases \(x\) and \(y\) at STP is respectively:
Identify the herbicides from the following:
a) DDT b) Aldrin c) Sodium chlorate d) Nicotine e) Sodium arsenite
In which of the following set, both the substances have same hybridisation?

Consider the following statements: 
Statement-I: The products formed when diborane burns in air are \({B}_2{O}_3\), \({H}_2\), and \({O}_2\). 
Statement-II: Hybridization of boron atom in orthoboric acid is \(sp^2\). The correct answer 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 is not related to the removal of permanent hardness of water?
Which of the following aqueous solutions has highest pH? (Given \(\log 2 = 0.30\), \(\log 3 = 0.48\), \(\log 4 = 0.60\), \(\log 5 = 0.70\))