Q. Every kilogram of seawater has approximately how much dissolved salts?
✅ Correct Answer: (D)
35 gms
General Science MCQs and Notes
Q. Which among the following is the unit of the scale used for measurement of the spicy heat of a chili pepper?
✅ Correct Answer: (D)
Scoville
Q. Which among the following kinds of Chemical reactions cause the rocks turn red or yellowish?
✅ Correct Answer: (B)
Oxidation
Q. If a Hydrogen atom is removed from a hydrocarbon of Benzene group, the remaining residue is called _________?
✅ Correct Answer: (B)
Aryl
Q. Haber Process is used to produce which among the following?
✅ Correct Answer: (B)
Ammonia
Q. Consider the following statements regarding Graphene and Fullerene:
1. Graphene is 2 dimensional , Fullerene is generally 3 dimensional
2. Graphene is SP2 allotrope of Carbon, while Fullerene is SP3 allotrope of Carbon
3. Graphene does not dissolve in petrol but fullerenes dissolve
Which among the above statements is / are correct?
1. Graphene is 2 dimensional , Fullerene is generally 3 dimensional
2. Graphene is SP2 allotrope of Carbon, while Fullerene is SP3 allotrope of Carbon
3. Graphene does not dissolve in petrol but fullerenes dissolve
Which among the above statements is / are correct?
✅ Correct Answer: (D)
1 & 3 are correct
Q. The minimum temperature at which a combustible substance catches fire is called:
✅ Correct Answer: (B)
ignition temperature
Q. For respiration in deep sea, divers use mixture of:
✅ Correct Answer: (D)
Oxygen, Helium & nitrogen
Q. Consider the following statements:
1. Copernicium is at present highest-numbered element recognized by IUPAC
2. Copernicum has been synthesized in the lab by a nuclear reaction of Zinc and Lead Isotopes
Which among the above statements is / are correct?
1. Copernicium is at present highest-numbered element recognized by IUPAC
2. Copernicum has been synthesized in the lab by a nuclear reaction of Zinc and Lead Isotopes
Which among the above statements is / are correct?
✅ Correct Answer: (C)
Both 1 & 2 are correct