Fire clay is __________ refractory material.
A basic
An acidic
A neutral
Not a
- Haemoglobin is a/an
- Commonly used glass is known as the __________ glass.
- Trinitrotoluene (TNT), an explosive, is made by the nitration of
- Which glass is usually used in optical work?
- Which of the following is not present in bagasse fibre?
- Which of the following is not a pyrite ore?
- Catalytic oxidation-dehydrogenation of methyl alcohol produces
- Bleaching action of bleaching powder is due to its __________ properties.
- High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
- Sulphur addition in soap is done to
- Sudden temperature fluctuation does not affect pyrex glass, because of its
- __________ is used as a flux in the smelting of copper ore like chalcopyrite.
- How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical…
- Prussian blue is chemically represented by
- The most economical pulp for the production of newsprint would be the __________ pulp.
- Massecuite is
- __________ process is used for the commercial production of nitric acid by the catalytic oxidation of…
- __________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.
- Pick out the wrong statement.
- Cumene (isopropyl benzene) is made by
- Soap cannot be used with hard water, because
- Which of the following is a detergent?
- Hydrazine is largely used
- Percentage of alcohol in beer may be around __________ percent.
- Oxidation of SO2 to SO3 is favoured by
- Thermosetting materials
- Poly Vinyl Chloride (P.V.C.) is a __________ material.
- __________ of rubber decreases after its vulcanisation.
- Chemical name of 'alum' is
- Which of the following is an explosive?