List of top Chemistry Questions asked in AP EAPCET

Nucleotides in RNA are joined by which of the following phosphodiester linkages?
A vitamin (X) is water soluble but can be stored in the body. Deficiency of X causes which disease?
Sulphur containing amino acids of the following are
A. Serine
B. Cysteine
C. Lysine
D. Methionine
Which of the following bases are present both in DNA and RNA?
bases are present both in DNA and RNA
Which of the following is not correctly matched for enzymatic reactions?

Match the following

List – IList – II
A. Beri BeriI. Riboflavin
B. ScurvyII. Thiamine
C. CheilosisIII. Pyridoxine
D. RicketsIV. Ascorbic acid
 V. Vitamin D
The source of vitamin, whose deficiency causes scurvy is:
Given below are two statements
Assertion (A): Hydrolysis of sucrose results in change in the optical rotation from dextro (+) to laevo (–)
Reason (R): Both the products from the hydrolysis are leavorotatory
In amylopectin, branching occurs by which of the glycosidic linkage?
The correct order of bond angles of H$_2$S, NH$_3$, BF$_3$, and SiH$_4$ is
The hybridization and number of lone pair of electrons on central atom of SF$_4$ respectively are
Given below are two statements
Assertion (A): Ionic compounds are formed by non-directional bonds
Reasoning (R): They are soluble in nonpolar solvents
The correct answer is
Match the following
hybridisation
The hybridization of central atom of ClF$_3$, NH$_3$, SO$_3$ are respectively
Observe the following species: AlCl$_3$, NH$_3$, H$^+$, Co$^{3+}$, $^-$OH, Mg$^{2+}$, BF$_3$, Cl$^-$ How many Lewis acids are present in the above list?
Arrange the hydrides NH$_3$, HF, H$_2$O, HCl in the increasing order of their boiling points
The correct order of C − O bond length in CO, CO2−3, CO2 is
The P − P bond angle in P4 and S − S bond angle in cyclo S8 molecule are respectively
Which of the following are not in accordance with the property mentioned against them? I. \( F_2>Cl_2>Br_2>I_2 \): Oxidising power
II.\( MI>MBr>MCl>MF\): Ionic character of metal halide
III. \( F_2<Cl_2<Br_2<I_2 \): Bond dissociation enthalpy
IV. \( HI<HBr<HCl<HF \): Hydrogen-halogen bond strength
The number of bond pairs of electrons and total number of lone pairs of electrons in XeOF$_4$ are respectively
In which of the following, the molecules are arranged in the increasing order of their bond angles?
If the bond order in \( C_2 \) is \( x \), then the bond order in \( B_2 \) and \( O_2 \), respectively are:
One mole \(\text{H}_2\text{O}(g)\) and one mole \(\text{CO}(g)\) are taken in a 1L flask and heated to 725K. At equilibrium, 40% (by mass) of water reacted with \(\text{CO}(g)\) as follows: \[ \text{H}_2\text{O}(g) + \text{CO}(g) \rightleftharpoons \text{H}_2(g) + \text{CO}_2(g) \] Its \(K_c\) value is:
Among the following the correct statements are
I. Germanium exists only in traces
II. PbF4 molecule is tetrahedral in shape
III. GeX2 is more stable than GeX4

Match the following molecules with their dipole moments:

List IList II
\( \mathrm{H_2O} \)I. 0
\( \mathrm{BF_3} \)II. 0.23
\( \mathrm{NH_3} \)III. 1.47
\( \mathrm{NF_3} \)IV. 1.85