List of top Nano Science Questions on Atomic Structure

Match the LIST-I with LIST-II.

LIST-ILIST-II
A. Mole concept
B. Percentage yield
C. Limiting reagent
D. Avogadro's number		I. \(6.023 \times 10^{23}\)
II. Reactant completely consumed first
III. Ratio of actual yield to theoretical yield
IV. Relate mass to number of particles

Choose the correct answer from the options given below:

Match the LIST-I with LIST-II.

LIST-ILIST-II
A. \(\alpha\)-rays (Alpha)
B. \(\beta\)-rays (Beta)
C. \(\gamma\)-rays (Gamma)
D. Half-Life		I. Negative charged particles
II. Helium nuclei
III. High penetrating power
IV. Time required for half of the radioactive nuclei to decay

Choose the correct answer from the options given below:

Match the LIST-I with LIST-II.

LIST-ILIST-II
A. \( \mathrm{Na^+} \)
B. \( \mathrm{P^{3-}} \)
C. \( \mathrm{Al^{3+}} \)
D. \( \mathrm{Fe^{2+}} \)		I. \(1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^6\)
II. \(1s^2\,2s^2\,2p^6\,3s^1\)
III. \(1s^2\,2s^2\,2p^6\)
IV. \(1s^2\,2s^2\,2p^6\,3s^2\,3p^6\)

Choose the correct answer from the options given below:

Process of DNA replication involves
• DNA polymerase synthesis
• Semi conservative
• In eukaryotes occur in cytoplasm
• Require RNA primer Choose the correct answer from the options given below:
Sequence how enzyme converts substrate into products A. Substrate held in the active site by weak interaction B. The active site lower \(E_a\) and speed up the reaction C. Substrate enters into active site, enzyme changes shape D. Substrate are converted to products Choose the correct answer from the options given below:
Select the best reason of difference between endocrine gland from exocrine glands.
• Secrete hormones into blood
• Have ducts
• They are differ in their structures
• One secrete enzyme the other secrete mucus
Arrange the following electromagnetic radiations in increasing order of their frequency
• X-rays
• Infrared rays
• Visible rays
• Gamma rays Choose the correct answer from the options given below:
Assertion A: Electrons exist in sharp and specific orbits Reason R: The Schr\"odinger equation describes orbits as probability distributions In the light of the above statements, choose the most appropriate answer from the options given below
• Both A and R are correct and R is the correct explanation of A
• Both A and R are correct but R is NOT the correct explanation of A
• A is correct but R is not correct
• A is not correct but R is correct
Arrange the following in terms of increasing dimension of quantum confinement of electrons at nanoscale
• Quantum Dot
• Bulk Material
• Quantum Well
• Quantum Wire Choose the correct answer from the options given below:
Give the symbol and name for the ion with 34 protons and 36 electrons?
• \( \mathrm{Al^{3+}} \)
• \( \mathrm{Se^{2-}} \)
• \( \mathrm{Te^{2-}} \)
• \( \mathrm{Mg^{2+}} \)
An element naturally occurs in two isotopic forms. Which of the following statements is correct?
Lyman spectral series is found in region of spectrum
Which of the following is incorrect as per rules for Linear Combination of Atomic Orbitals (LCAO)?