A. Zinc
B. Lead
C. Chromium
D. Copper
✅ The correct answer is option A.
SSC
602. Hard Water contains which of the following?
A. Aluminum
B. Chlorine
C. Calcium
D. Zinc
✅ The correct answer is option C.
603. Which among the following basic atoms are must in an Alkaloid?
A. Sodium
B. Nitrogen
C. Magnesium
D. Potassium
✅ The correct answer is option B.
604. Which among the following is incorrect regarding the chemical nature of Diamond & Graphite?
A. Density of Diamond is higher than that of Graphite
B. Diamond is chemically unreactive while graphite is mild reactive
C. Both Diamond and Graphite are good conductors of electricity
D. None of the above
✅ The correct answer is option C.
606. Which among the following is not a constituent of gobar gas?
A. Methane
B. Propane
C. Carbondioxide
D. All are constiuents of Gobar gas
✅ The correct answer is option B.
607. Which among the following of a catalyst does not change at the end of a reaction?
A. Quantity
B. Chemical Composition
C. Both Quantity and Chemical com position
D. None of the above
✅ The correct answer is option C.
608. What is the main use of Bisphenol A drug ?
A. A drug which was used by sports persons for doping
B. A chemical compound which is used in plastics used for food packaging
C. An alloy which is used in cans of cola drinks
D. None of the above
✅ The correct answer is option B.
609. Which among the following provides the centripetal force to an electron circulating around the nucleus?
A. electrostatic forces of repulsion
B. electrostatic force of attraction
C. speed of the electron
D. nuclear charge
✅ The correct answer is option B.
610. Which among the following is most electronegative element?
A. Chlorine
B. FLourine
C. Bromine
D. All of them have same electronegativity
✅ The correct answer is option B.