List of practice Questions

Temporary endocrine gland in the human body is
The expression that gives the number of genotypes for multiple alleles is
1 L of 0.1 M HCl is added to 1 L of 0.1 M HA (weak acid) solution. To this solution, 16 g of solid NaOH is added. What is the pOH value of resultant solution? (Given molar mass of NaOH is 40 g/mol, $ \log 2 = 0.3, \log 4 = 0.6 $)
A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of 80.0 $ \mu C \, m^{-2} $. The charge on the sphere is nearly:
Assertion (A): The activated osteoblasts start deposition of mineral material to join fractured bone.
Reason (R): The major part of inorganic matter of bone is collagen.
In the above reaction electrophile is substituted at meta position only, due to
electrophile is substituted

I. Electron density is more at ortho & para position
II. Electron density is relatively less at ortho & para position
III. Electron density is less at meta position
IV. Electron density is relatively more at meta position Correct answer is
Out of seven crystal systems, how many have face-centred unit cells?
Telescope has objective diameter 250 cm. For wavelength \( \lambda = 600 \, \text{nm} \), the limit of resolution is:
Distance moved by a charged particle in magnetic field (with parallel velocity component) in one rotation is:
Observe the following species \[ \text{AlCl}_3, \, \text{NH}_3, \, \text{H}^+, \, \text{Co}^{3+}, \, \text{OH}^-, \, \text{H}\text{Mg}^{2+}, \, \text{BF}_3, \, \text{Cl}^- \] How many Lewis bases are present in the above list?
Which of the following types of isomerism is exhibited by [Co(NH$_3$)$_5$(NO$_2$)] (NO$_3$)$_2$ i. Optical ii. Linkage iii. Ionization iv. Coordination
The correct combinations among the following I. Artificial gene synthesis - H.G. Khorana - Cell Biology
II. Pollen Science - P.K.K. Nair - Pollinology
III. Respiration - Amon - Physiology
IV. Phylogenetic classification - Bessey - Taxonomy
Find the correct sub-phase based on the arrangement of chromosomes during M-phase. M-phase -- The arrangement of chromosomes at different stages.
A bomb at rest explodes into three pieces of equal masses. If two pieces move perpendicular to each other, each with a speed \( v \), then the speed of the third piece is:
A body rotating with uniform acceleration about its geometrical axis makes 8 rotations in the first 2 seconds. The number of rotations the body makes in the next 3 seconds is (Initially the body is at rest):
The given unit cell belongs to the type:
The given unit cell belongs
When a resistance \( R_1 \) is connected across a cell, the current is \( I_1 \) and if the resistance \( R_1 \) is replaced by \( R_2 \), the current is \( I_2 \). Then the internal resistance of the cell is:
The gauge pressure at a depth of 50 m in a sea is
Among the following, the correctly matched pair is:
The plot of \( \log \frac{x}{m} \) (y-axis) and \( \log p(x) \) (x-axis) is a straight line inclined at an angle of 45°. When the intercept, \( K \) is 10 and pressure is 0.3 atm, the amount of solute in grams adsorbed per gram of adsorbent (log3 = 0.4771) is:
IUCN (International Union for Conservation of Nature) was founded in which year?
In a thermodynamic pross if '$\Delta W$' and '$\Delta U$' are the work done and change in the internal energy of a system respectively, then
Angular width of ntral maximum of a diffraction pattern due to a single slit does not depend upon
The current amplification factor and the collector current in a transistor circuit are 100 and 2.2 mA respectively. Then the base current is
Primary CO$_2$ acceptor in C$_4$ plants