List of practice Questions

The minimum number of quantum numbers required to specify an orbital in an atom is
Imagine a pentagon shaped building. The walls of the building are sides of the pentagon, and there is a watchtower at each vertex. Each watchtower can have guards who can watch two walls connected to the watchtower. What is the minimum number of guards required if each wall needs to be watched by at least 3 guards?
Identify the correct statement related to amino acids
From the following, number of fat soluble and water soluble vitamins respectively are A D C B$_1$ K B$_6$
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?