ANS:A - Linguist

No answer description is available. 

ANS:C - private

No answer description is available. Let's discuss.

ANS:D - all of these.

No answer description is available.

ANS:B - low melting point and high specific resistance

No answer description is available.

ANS:B - ∞

In steady-state equimolal counter-diffusion, the molar fluxes of the two gases, 𝑁𝐴NA​ and 𝑁𝐵NB​, are equal and opposite in direction, resulting in no net flow of either gas across the system. The value of 𝑁𝐴𝑁𝐴+𝑁𝐵NA​+NB​NA​​ can be calculated as: 𝑁𝐴𝑁𝐴+𝑁𝐵=𝑁𝐴𝑁𝐴−𝑁𝐴=10NA​+NB​NA​​=NA​−NA​NA​​=01​ However, division by zero is undefined. In the case of steady-state equimolal counter-diffusion, the molar flux of one gas is equal in magnitude but opposite in direction to the molar flux of the other gas. Therefore, the correct answer would be: 𝑁𝐴𝑁𝐴+𝑁𝐵=11+1=12=0.5NA​+NB​NA​​=1+11​=21​=0.5 So, the correct option is 0.5.

ANS:C - n-m

The Buckingham-π theorem states that in any physical problem involving nnn quantities that have mmm fundamental dimensions (such as length, mass, time, etc.), these quantities can be arranged into n−mn - mn−m independent dimensionless parameters. Therefore, the answer is n−mn - mn−m.

ANS:A - Kurukshetra

International Gita Mahotsav will be organized from 19 November to 6 December 2022 at Kurukshetra, Haryana.

ANS:A - Alexender

Penicillin, an antibiotic drug, was discovered by Alexander Fleming. Penicillin is an antibiotic that was discovered by Alexander Fleming in 1928. Fleming, a Scottish bacteriologist, noticed that a mold called Penicillium notatum had contaminated one of his petri dishes and was killing the surrounding bacteria. This observation led to the identification of penicillin as the first true antibiotic, capable of treating bacterial infections.

Key Points about Penicillin:

1. Mechanism of Action: Penicillin works by inhibiting the synthesis of bacterial cell walls, causing the bacteria to burst and die, which is effective against a wide range of bacteria.
2. Historical Impact: The discovery of penicillin revolutionized medicine, paving the way for the development of other antibiotics and significantly reducing mortality from bacterial infections.
3. Development: Although Fleming discovered penicillin, it wasn’t until the early 1940s that it was mass-produced and widely used, thanks to the efforts of scientists like Howard Florey and Ernst Boris Chain during World War II.
4. Applications: Penicillin is used to treat various infections, including pneumonia, strep throat, and syphilis, among others.
5. Resistance: Over time, some bacteria have developed resistance to penicillin, leading to the need for new antibiotics and ongoing research in the field.

ANS:D - Vivek Joshi

The Union Government has appointed Financial Services Secretary Vivek Joshi as a director on the central board of the Reserve Bank of India (RBI).

ANS:B - Piyush Goyal

Commerce and Industry Minister Piyush Goyal has inaugurated the fair, which will continue till the 27th of November.