SSC CHSL GK Questions 2026

Pure alumina melts at a very high temperature, so it is dissolved in molten cryolite, which is sodium aluminium fluoride, usually with a little fluorspar added; this brings the working temperature down sharply and makes the melt a good conductor.

The lead-acid cell has a spongy lead negative plate and a lead dioxide positive plate dipped in dilute sulphuric acid, and as the cell discharges both plates turn to lead sulphate while the acid becomes weaker, which is why its state of charge can be judged from the specific gravity…

In the Leclanche dry cell the outer container itself is made of zinc and acts as the anode, being oxidised to zinc ions as the cell works, which is why an old cell often leaks when the container is eaten through.

Its reaction is reversible, so passing a current through it in the opposite direction converts the products back into lead and lead dioxide and the cell can be used again; such a cell is called a secondary or storage cell, and the car battery is the common example.

In the chlor-alkali process a concentrated solution of sodium chloride is electrolysed; chloride ions are oxidised at the anode and come off as chlorine gas, hydrogen is set free at the cathode, and sodium hydroxide remains in the solution, which is why the industry yields three useful products at once.

The metal ions in the plating bath carry a positive charge, so they move towards the negative electrode and are reduced to metal there; the article must therefore be the cathode for the coating to build up on it.

One faraday is the charge carried by one mole of electrons, obtained by multiplying the charge on a single electron by the Avogadro number, and it comes to about 96,500 coulombs; passing one faraday through an electrolyte liberates one gram equivalent of the substance at an electrode.

The anode is the electrode joined to the positive terminal of the supply, so negatively charged ions, the anions, travel to it and give up electrons there; loss of electrons is oxidation.

When cells are joined in parallel all their positive terminals are connected together and all their negative terminals together, so each cell is across the same two points and the voltage of the combination is the voltage of one cell, that is 12 volts.

The working rule for charging a storage battery is that the charging current should be about one-tenth of the ampere-hour capacity of the battery, which is called the C by 10 rate.

The agreement lists delivery of parcels paid for in advance and parcels paid for on delivery, confirmation of delivery through a one-time password, and tracking of a consignment in real time, along with faster delivery through closer operational coordination and shared technology.

The Department of Posts runs more than that many post offices across the country, which together make up the largest postal network in the world, and it is this reach that Blue Dart Express Limited gains under the agreement.

The Department of Posts, which works under the Ministry of Communications, signed the agreement with that company in New Delhi on 9 October 2026, in the presence of senior officers from both organisations.

It is a structured community engagement initiative meant to strengthen mental health literacy, cut the stigma attached to mental illness and prompt people to seek help early rather than late.

The programme runs under the National Mental Health Programme with support to states and union territories through the National Health Mission, and it funds outpatient care, counselling, psychosocial help, medicines, follow-up, outreach, referral and inpatient treatment at the district level.

The day falls on 10 October every year, and the theme for the 2026 observance asks that the voices of those who have lived with mental health conditions be heard and allowed to shape policy and services.

Tele-MANAS, which stands for Tele Mental Health Assistance and Networking Across States, offers free and confidential counselling on this number at any hour of the day, in several languages, without the caller having to reach a hospital.

More than four-fifths of the craft is of Indian origin, and it is propelled by three diesel engines that drive waterjets, which gives it the agility needed in shallow waters.

Mangrol is a coastal town and a well-known fishing harbour in the Junagadh district of that state, and the Navy has used the name before: the minesweeper INS Mangrol, with the pennant M85, served until April 2004.

The correct answer is Abhay, the hull-mounted sonar that lets the craft pick up submarines in coastal and shallow waters.