Answer: B. NASDAQ

Explanation: NASDAQ is a major American stock exchange, and its name is synonymous with the high-tech share market. It plays a critical role in global finance by listing numerous technology companies.

Answer: B. Spontaneous

Explanation: Impromptu means done without prior planning. 'Spontaneous' is the closest synonym, whereas the other options imply structure or external origin.

Answer: C. ZipDose technology (3-D printing)

Explanation: Spritam® is notable for being the first FDA-approved 3-D printed tablet. This innovative ZipDose technology allows for rapid disintegration, ensuring faster drug release and improved patient compliance.

Answer: A. Lesinurad

Explanation: Lesinurad is used as an antigout drug that functions by inhibiting urate transporters in the kidney, thereby increasing uric acid excretion and helping to manage hyperuricemia associated with gout.

Answer: A. asibu

Explanation: Among the given words, 'asibu' is the odd one out as it does not follow the same pattern or share similarity with the other items, as determined by the answer key.

Answer: C. C27H46O

Explanation: Cholesterol is a sterol with the molecular formula C27H46O. Its structure includes a four-ring steroid nucleus and a hydrocarbon tail, playing an essential role in membrane structure and as a precursor for steroid hormones.

Answer: A. Oxazolidinone

Explanation: Linezolid belongs to the oxazolidinone class of antibiotics. It functions by inhibiting bacterial protein synthesis and is especially effective against Gram-positive pathogens, including resistant strains like MRSA.

Answer: C. 13km northwest

Explanation: After traveling the described route, the net displacement places the person 13 km northwest of the starting point. Vector analysis confirms that the combined movements result in a northwestward direction.

Answer: A. equal to 0.3 μm

Explanation: A standard HEPA filter is required to capture at least 99.95% or 99.97% of particles with a diameter of 0.3 μm, which is considered the most penetrating particle size for filtration systems.

Answer: B. 512

Explanation: In the given number series, the pattern involves perfect cubes and squares. Based on the progression, the missing number is 512, which fits mathematically into the series.

Answer: A. Chimeric genes

Explanation: Chimeric genes are created by combining portions of two or more genes, resulting in a novel gene with segments from different origins. This genetic recombination is used in research and biotechnology to create new protein functions.

Answer: C. 2 gm

Explanation: To prepare 100 ml of a 0.5 M NaOH solution, the calculation involves the molar mass of NaOH and the required moles, which results in approximately 2 grams. This is a standard calculation in solution chemistry.

Answer: B. Lysozyme

Explanation: Bacteriophages often carry lysozyme, an enzyme that degrades the bacterial cell wall to facilitate the release of viral progeny. Its presence is critical for the lytic cycle in phage replication.

Answer: A. Cross-linked polystyrene

Explanation: Cross-linked polystyrene is widely used as a matrix for ion exchange resins. Its chemical stability and mechanical strength make it ideal for applications in water purification and chemical processing.

Answer: A. NPPA

Explanation: The Drug Price Control Order (DPCO) is implemented by the National Pharmaceutical Pricing Authority (NPPA), which regulates drug prices to ensure affordability and accessibility of essential medicines in India.

Answer: D. Andrographolide

Explanation: Kalmegh is known for its bitter taste, which is primarily attributed to the presence of andrographolide. This compound is responsible for many of its pharmacological activities, including its anti-inflammatory effects.

Answer: B. Ketene

Explanation: Wolff’s reaction involves the conversion of an α-diazoketone into a ketene intermediate. This reactive intermediate subsequently undergoes further chemical transformations, such as nucleophilic addition reactions.

Answer: A. Eel >> Evb >> Erot >> Etr

Explanation: The energy order in molecular systems typically follows electronic energy (Eel) being the highest, followed by vibrational (Evb), rotational (Erot), and translational (Etr) energies. This hierarchy is fundamental in molecular spectroscopy.

Answer: D. 7

Explanation: Fuming sulphuric acid, also known as oleum, is composed of concentrated H2SO4 with approximately 7% SO3. This high concentration of SO3 significantly increases its reactivity and industrial usefulness.

Answer: B. SN2 reactions

Explanation: Polar aprotic solvents favor SN2 reactions by stabilizing the ions without hindering the nucleophile. This leads to faster reaction rates compared to SN1 mechanisms, which require polar protic solvents.