17th June 2026

Explanation – Long Range Land Attack Cruise Missile is a subsonic, surface-launched cruise missile designed to strike land targets at long distances with high precision.

Features:

• Range — It is capable of striking targets at ranges approaching 1,000 km while carrying a 450 kg warhead.
• It integrates a turbofan or turbojet propulsion unit for sustained flight, an advanced inertial navigation system augmented by satellite navigation for midcourse guidance, and a terminal seeker or terrain-contour matching capability for accurate target engagement.
• It is designed for low-altitude, terrain-hugging flight. It minimises detection and interception risk while delivering a conventional warhead on designated high-value targets.
• It introduces a survivable terrain-hugging precision strike capability capable of threatening high-value command infrastructure, logistics hubs, radar installations, and naval assets.

It is developed by the Aeronautical Development Establishment (ADE) in Bengaluru with contributions from various DRDO laboratories and Indian Industry partners.

Explanation – Dropshipping is a retail business model in which a seller accepts customer orders without keeping the products in stock. Instead, when a customer places an order, the seller purchases the product from a third-party supplier, who then ships it directly to the customer.

• A dropshipper is an intermediary between consumers and suppliers, curating and promoting the goods that suppliers ship to customers.
• Many businesses prefer dropshipping because it removes costs like warehouse storage and unsold inventory.
• The dropshipping model is attractive to smaller retailers and entrepreneurs because it requires relatively little capital investment and overhead.
• Drop-shipping is not illegal, but there can be problems for buyers and sellers.

Explanation – It is an organic compound that falls under the category of aromatic ketones. It is most widely known as the primary starting material for manufacturing mephedrone (4-methylmethcathinone), a synthetic stimulant and psychotropic substance. It is primarily produced by specialised pharmaceutical manufacturers, as it is highly valued in organic synthesis for several legal industrial applications.

Properties:

• It has a phenyl ring attached to a propiophenone group, substituted by a bromine atom at the 2-position and a methyl group at the 4-position.
• Physically, 2-bromo-4-methylpropiophenone appears as a white or off-white crystalline solid.
• It is sparingly soluble in water but exhibits good solubility in various organic solvents such as ethanol, acetone, and chloroform.

Applications:

• It acts as an important intermediate in the synthesis of various pharmaceuticals, agrochemicals, and fine chemicals.
• It exhibits potential biological activities, including antimicrobial, antifungal, and anti-inflammatory effects.

It serves as a vital building block or intermediate for synthesising legal medical drugs, specifically analgesics (pain relievers), sedatives, and anticonvulsants (used to treat epilepsy and seizures).

Explanation – Crohn's Disease is a type of inflammatory bowel disease (IBD). It is a chronic, or long-term condition that causes inflammation in the digestive tract.

Causes:

• It is not clear what causes Crohn's disease. Experts suggest that it may stem from an abnormal reaction of the immune system.
• Although it typically starts in childhood or early adulthood, Crohn's disease can develop at any age.
• Inflammation caused by Crohn's disease can involve different areas of the digestive tract in different people, most commonly the small intestine.

Symptoms: The most common symptoms of Crohn's disease are diarrhoea, cramping and pain in the abdomen, anaemia, altered appetite, and weight loss.

Treatment: There is no known cure for Crohn's disease, but therapies can greatly reduce its signs and symptoms.

Explanation – At the core of Ukraine's drone warfare is the First-Person View (FPV) drone — a cheap, commercially available platform originally built for recreational racing. Operators control them via live video fed to VR-style goggles, giving exceptional precision and manoeuvrability.

FPV drones were rapidly converted into:

• Kamikaze/Strike Drones — Small quadcopters carrying explosive payloads, flown directly into targets as disposable precision missiles. A drone worth a few hundred dollars can destroy armoured vehicles worth millions.
• Bomber Drones — Adapted from commercial DJI Mavic and Matrice platforms; they drop grenades and anti-tank mines and survive missions, enabling repeated sorties against trenches and bunkers.
• Interceptor and Long-Range Attack Variants — Used to strike deep inside Russian territory against airbases, logistics hubs and critical infrastructure.