Solved Questions and Answers Sets For Competitive Exams

Q.1:- Which of the following is not an ore of Boron ? Kernite Feldspar Colemanite Borax Q.2:- Which of the following is used for making […]

Q.1:- Proteins given purple colour with ? Benedict’s reagent Iodine Solution Ninhydrin Reagent Biuret Q.2:- Vitamin B2 is also known as ? Riboflavin Pyridoxin Ascrobic […]

Q.1:- The three elements most used in chemical fertilizers are ? Nitrogen, Sodium, Sulphur Nitrogen, Potassium, Phosphorus Nitrogen, Phosphorus, Sodium Calcium, Sodium, Sulphur Q.2:- The […]

Q.1:- Bell metal is an alloy of ? Cu + Sn Cu + Zn Cu + Ni Cu + Pb Q.2:- Aluminium salt commonly used […]

Q.1:- The enzymes are killed ? at a very high temperature during chemical reaction at low temperature under atmospheric pressure Q.2:- A system which can […]

Q.1:- Which of the following may be used as food preservative ? Benzene Sodium Benzoate Toluene Sodium Meta-Aluminate Q.2:- It is reported that there is […]

Q.1:- The first organic compound synthesized in the laboratory was ? [SSC Exam 2014] Urea Uric Acid Lactic Acid Glucose Q.2:- Chromatography technique is used […]

Q.1:- Iron obtained from blast furnace is known as ? Pig Iron Hard Iron Wrought Iron Soft Iron Q.2:- Thermal conductivity of Aluminium, Copper and […]

Q.1:- Sulphur sol contains ? Discrete sulphur atoms Discrete sulphur molecules Large aggregates of sulphur molecules Water dispersed in solid sulphur Q.2:- Soap helps in […]

Q.1:- A bond formed by sharing of electrons between atoms of the elements is called ? Ionic Bond Covalent Bond Co-ordinate Bond None of the […]