Sulphuric acid completely saturated with sulphur trioxide is called September 7, 2025 by Admin Concentrated sulphuric acid Oleum Sulphurous acid Dilute sulphuric acid ✅ The correct answer is option A.
Hydrogenation of oil takes place in a/an __________ reactor. September 7, 2025 by Admin Autothermal Trickle bed Plug flow None of these ✅ The correct answer is option B.
Cumene is the starting material for the production of September 7, 2025 by Admin Benzoic acid Phenol and acetone Isoprene Styrene ✅ The correct answer is option B.
What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell? September 7, 2025 by Admin Cl₂ & Na Cl₂ & H₂ O₂ & H₂ Cl₂, H₂ & NaOH solution ✅ The correct answer is option D.
Cement mainly contains September 7, 2025 by Admin CaO, SiO₂, Al2O₃ MgO, SiO₂, K₂O Al2O₃, MgO, FE₂O₃ CaO, MgO, K₂O ✅ The correct answer is option A.
Sea weeds are an important source of September 7, 2025 by Admin Fluorine Chlorine Bromine Iodine ✅ The correct answer is option D.
Glauber’s salt is chemically represented by September 7, 2025 by Admin Na₂SO₄.10H₂O CaCl(OCl) CaSO₄.H₂O (NH₄)₂SO₄ ✅ The correct answer is option A.
Calcination of gypsum produces September 7, 2025 by Admin Plaster of paris Salt cake Nitre cake Lime ✅ The correct answer is option A.
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm. September 7, 2025 by Admin 800 1600 4000 8500 ✅ The correct answer is option B.
Polymethyl methacrylate (PMMA) is known as September 7, 2025 by Admin Bakelite Teflon Perspex Nylon-6 ✅ The correct answer is option C.