General Science Mixed Practice — MCQs with Answers (Set 1)

Nitrolim is calcium cyanamide, CaNCN. Ammonium nitrate is NH4NO3. Urea is CO(NH2)2. Potassium nitrate is KNO3. So A=3, B=4, C=1, D=2.

Allosteric enzymes are multi-subunit proteins, and each subunit carries both an active site and a separate regulatory site. They give a sigmoidal, not hyperbolic, velocity-versus-substrate curve, so they do not follow standard Michaelis-Menten kinetics.

Nitrogenase is highly sensitive to oxygen, which inactivates it, so it needs anaerobic conditions, not aerobic ones. Leghemoglobin in root nodules scavenges oxygen to protect it.

The answer is eGFR, the estimated Glomerular Filtration Rate. It shows how well the kidneys filter. The committee also asked for kidney function tests twice a year for people aged 20 and above. Memory hook: eGFR with every test.

The answer is hypertension at 64.5%. Anaemia was 40.7% and diabetes 31.6%. Memory hook: BP, blood, sugar.

The answer is 7 April 2016. It was announced in Union Budget 2016-17. It runs under the National Health Mission at district hospitals. Memory hook: 2016, free, district hospitals.

The answer is 7.9%. The 17.2% figure is the overall CKD prevalence. Hypertension (64.5%) and anaemia (40.7%) were common among people with CKD. Memory hook: 17 found, 8 aware.

The answer is the Department of Science and Technology (DST). IASST is an autonomous institute of DST. It is located in Guwahati, Assam. Memory hook: IASST sits under DST.

The answer is a tribofilm. It contains iron oxides, carbonaceous species and boron-based compounds. It reduces shear stress and wear. Memory hook: disperse, film, protect.

The answer is boron. Graphene is the carbon sheet. Borophene was first made on silver surfaces in 2015. Memory hook: boron, not carbon.

The answer is 0.1 wt.%. That tiny amount cut friction by about 42% against pure castor oil. Memory hook: 0.1 in, 42 off.

The answer is the Central Register. Section 11 asks the Commission to keep an up-to-date, online and live Central Register of professionals. It lists qualifications, training and competencies. Memory hook: standards, ethics, register.

The answer is the Diploma in Medical Laboratory Technology (DMLT). Institutions were advised to adopt it from 2026-27. It becomes mandatory from 2027-28. Memory hook: July 2026, DMLT.

The answer is ten. The Schedule lists ten recognised categories, from medical laboratory and life sciences to health information management. Each category gets a Professional Council. Memory hook: ten categories, ten councils.

The answer is 28 March 2021. The Act text is dated 28 March 2021. Parliament passed the Bill on 24 March, and the Act came into force on 25 May. Memory hook: passed, assent, in force.

The answer is Tata Memorial Hospital, Mumbai. It is part of the Tata Memorial Centre. The 2010 plan called it the “mother” hospital. Memory hook: DAE, Tata, Mumbai.

The answer is 100 crore rupees over five years. It funds a tumour biobank, a teleconsultation network and cancer-specific electronic records. Memory hook: biobank, tele-network, records.

The answer is an MoU on uniform standards of cancer care under PM-JAY. They would also review cancer packages and prices. Memory hook: NHA, PM-JAY, 2019.

The answer is the Department of Atomic Energy. PTI reported the proposal in July 2010. The aim was uniform care and less rush at Tata Memorial in Mumbai. Memory hook: 2010 idea, DAE.

The correct answer is Padma Bhushan. The Padma Awards list for 1968 shows Pal among the Padma Bhushan awardees. The Padma Shri option is wrong because he received that earlier, in 1958. The Bharat Ratna option is wrong because no source lists it among his honours. The Padma Vibhushan option is wrong because it is a higher award. The sources we read give no year for it. Memory hook: Shri 1958, Bhushan 1968.

The correct answer is 1950. Pal became the first Indian Director of IARI in New Delhi in 1950 and served until May 1965. The 1936 option is wrong because that is when IARI moved from Pusa, Bihar, to New Delhi. The 1947 option is wrong because that is when it was renamed the Indian Agricultural Research Institute. The 1965 option is wrong because that is when Pal became ICAR’s first Director-General. Memory hook: 1950 IARI, 1965 ICAR.

The answer is a live attenuated tetravalent vaccine. It covers all four dengue serotypes and uses a dengue type-2 backbone. It is not mRNA or killed virus. Memory hook: weak live virus, four serotypes.

The answer is CDSCO, the Central Drugs Standard Control Organisation. ICMR does research and the Pharmacopoeia Commission sets drug standards. Memory hook: CDSCO approves.

The answer is 4 to 60 years. The schedule is two doses of 0.5 ml, three months apart. WHO focuses on ages 6 to 16 in high-spread areas. Memory hook: 4 to 60.

The answer is Indonesia. Its regulator, BPOM, approved Qdenga on 22 August 2022. India approved it nearly four years later, on 21 July 2026. Memory hook: Indonesia 2022 first.