List of practice Questions

Which of the following is/are peptide hormone(s)?
Which of the following is/are heteropolysaccharide(s)?
The equilibrium dissociation constant of acetic acid is \( 1.74 \times 10^{-5} \) M. The \( pK_a \) of acetic acid (rounded off to one decimal place) is ......
Which one of the following restriction endonucleases is a blunt cutter?
Which one of the following DNA repair systems requires DNA glycosylases?
Which one of the following is the most sensitive immunoassay?
Which of the following statements about antibodies is/are correct?
Which one of the following molecules does NOT contain phosphoanhydride bond(s)?
For an enzyme that follows Michaelis-Menten kinetics, a competitive inhibitor
Energy of the transition from \( n_h = 4 \) to \( n_l = 2 \) for hydrogen atom is \( E \times 10^3 \) cm\(^{-1}\).
Given: Rydberg constant for hydrogen: \( 1.097 \times 10^7 \, {m}^{-1} \)
Value of E is ............... (rounded off to two decimal places)
A non-volatile solute has a molecular weight of 180 g mol\(^{-1}\). Assume that the solute does not associate or dissociate in water, and the boiling-point constant (ebullioscopic constant) of water is 0.51 K kg mol\(^{-1}\).
The amount (in g) of solute added to 500 g of water to elevate the boiling point by 0.153 K is ............... (answer in integer)
The standard potentials (\( E^\circ \)) for the Fe\(^{3+}\)/Fe and Fe\(^{3+}\)/Fe\(^{2+}\) couples are -0.04 V and +0.76 V, respectively.
Given: Faraday constant = 96500 C mol\(^{-1}\)
The value for \( E^\circ \) (Fe\(^{2+}\)/Fe) in V is ............... (rounded off to two decimal places)
Zinc is essential for the function of
Which one of the following molecules captures \(CO_2\) in the \(CO_4\) cycle?
Which one of the following methods separates biomolecules based on their hydrodynamic volumes?
Consider the two \( pK_a \) values of valine as 2.32 and 9.62. The isoelectric point (pI) of this amino acid is ....... (rounded off to two decimal places)
The bond order in \( N_2^{2-} \) species is:

For a three-bar truss loaded as shown in the figure, the magnitude of the force in the horizontal member AB is ____________ N (answer in integer).


 

A 4 × 4 digital image has pixel intensities (U) as shown in the figure. The number of pixels with \( U \leq 4 \) is:


 

Column-I has statements made by Shanthala; and, Column-II has responses given by Kanishk. 


 

Highest limiting conductance at 298 K is:
A person can see distant objects clearly but cannot see nearby objects distinctly. The person is suffering from:
The value of the integral \( \int_0^1 x^2 \, dx \) is:
The length of minute hand in a clock is 4.5 cm. If the tip of the minute hand moves from 6 AM to 6:30 AM, the average velocity of the tip is:
The thermo emf of a thermocouple varies with temperature as \( E = A\theta + B\theta^2 \). If the cold junction is kept at \( 0^\circ C \), the neutral temperature is: