List of practice Questions

What are the variables in the graph of powder diffraction pattern of a crystalline solid?

If four charges \( q_1 = +1 \times 10^{-8} C \), \( q_2 = -2 \times 10^{-8} C \), \( q_3 = +3 \times 10^{-8} C \), and \( q_4 = +2 \times 10^{-8} C \) are kept at the four corners of a square of side 1 m, then the electric potential at the centre of the square is:

Ba, Ca, Sr form halide hydrates. Their formulae are \( BaCl_2 \cdot xH_2O \), \( CaCl_2 \cdot yH_2O \), \( SrCl_2 \cdot zH_2O \). The values of \( x, y, z \) respectively are:

For a first-order reaction, the concentration of reactant was reduced from 0.03 mol L\(^{-1}\) to 0.02 mol L\(^{-1}\) in 25 min. What is its rate (in mol L\(^{-1}\) s\(^{-1}\))?

Name the plant and body showing Cup or saucer shaped ascocarp

Identify the cranial nerves that are mixed among the following
I. Trigeminal
II. Hypoglossal
III. Vagus
IV. Glossopharyngeal

50 mL of 1 M HCl was completely reacted with \(x\) g of CaCO3 to form CaCl2, CO2, and H2O. What is the value of \(x\) in g?

Books having information on any one taxon

Match the following:

Assertion [A]: Fungal zygote develops a thick wall that is resistant to desiccation and damage
Reason [R]: Formation of diploid zygote is universal in all sexually reproducing organisms and its development depends on the type of life cycles

The structure processing microfilaments and microtubules and its function in a cell

A: Fe, B: K, C: P, D: S
These elements are important for proteins in the following activities:
I. Major constituent of proteins.
II. Stabilizing the protein structure.
III. Important constituent of certain proteins.
IV. Involved in protein synthesis.

The ratio of the number of electrons to be excited from PS II during non-cyclic photophosphorylation and PS I during cyclic phosphorylation respectively to form 120 ATPs

In Morgan's linkage experiments on Drosophila recombinants percentage for white eye and yellow body is:

Identify the incorrect pair.

It interferes with the transport of the neurotransmitter dopamine.

Identify the incorrect match:

The state of cease of menstrual cycles in women is called:

Observe the following set of reactions:

Correct statement regarding Y and B is:

In Angiosperms arrange the events of pre-fertilization/post-fertilization in a sequence:

Study the comparison of different transport mechanisms to pick out the correct pair in the following format:

Assertion (A): Circulatory system of arthropods and molluscs is mainly open type.
Reason (R): Blood pumped out by the heart is circulated through a series of blood vessels in them.

A spring of \( 5 \times 10^3 \) Nm\(^{-1} \) spring constant is stretched initially by 10 cm from the unstretched position. The work required to stretch it further by another 10 cm is

Identify the basic oxide from the following

In the given figure of logic gates, if the inputs are \( A = 1 \) and \( B = 0 \) then the values of \( y_1, y_2, \) and \( y_3 \) respectively are: