__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.
Pyrex
Soda lime
Lead
High silica
- Which of the following is the main constituent of the mother liquor produced in salt industry?
- Pick out the wrong statement.
- Air used in aerobic fermentation must be sterilized, otherwise the
- Synthetic glycerine is produced from
- Roasting of metallurgical ores is done mainly to
- Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers…
- Catalytic oxidation of naphthalene produces
- Dry ice (solidified CO2) is used for the
- Pick out the wrong statement.
- Phosphate rock is a raw material for the manufacture of
- Iron ore hematite is concentrated using
- All enzymes are made of
- Sand and __________ is fused at 1300°C, to produce sodium silicate.
- Which of the following is not an abrasive material?
- Anion exchanger is regenerated usually with
- CaSO4 . ½H2O is known as
- Average sulphur content in Indian pyrites is about __________ percent.
- Which of the following sugars is the sweetest?
- Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled…
- Lime and soda ash are added to water to remove
- Fermentation of molasses to produce ethyl alcohol is done at __________ °C.
- Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4…
- Catalyst used in the oxidation of benzene to produce Maleic anhydride is
- Yellow phosphorus is transported under
- The chamber process is
- Fermentation is adversely affected by the
- __________ is an ore of lead.
- Vulcanisation of rubber
- Pasteurisation of milk means
- Raw materials used for producing __________ cement does not contain iron oxide.