Which one is Natural Satellite?
Which one is Natural Satellite?A. Sun
B. Moon
C. Venus
D. Mercury
B. Moon
C. Venus
D. Mercury
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Oxidation is a chemical reaction involving the __________?
Oxidation is a chemical reaction involving the __________?A. Gain of Electrons
B. Loss of Electrons
C. Gain of Protons
D. Loss of ProtonsAfternoon rains in the equatorial region are the result of influences _______?
Afternoon rains in the equatorial region are the result of influences _______?
A. Land Breeze
B. Monsoon
C. Frontal
D. ConvectionalWhich of the following is a substance?
Which of the following is a substance?
A. Sea water
B. Brass
C. Tape water
D. Graphite
E. SandIn chemistry, a substance refers to a matter which has specific composition and specific properties which do not change. A substance can be an element or a compound. A substance typically has a constant composition, which can not be separated by physical methods. Seawater and sand are not substances, because they have varied compositions and their components can be separated by physical methods.
Enzymes are organic catalysts made up of ?
Enzymes are organic catalysts made up of ?A. Carbohydrates
B. Proteins
C. Nucleic Acid
D. FatsSmallpox was eradicated in 1970s. What was the ‘great pox’ which remains active?
Smallpox was eradicated in 1970s. What was the ‘great pox’ which remains active?A. Bubonic plague
B. Syphilis
C. Measles
D. NoneThe Beta particles are fast moving___________?
The Beta particles are fast moving___________?
A. Protons
B. Electrons
C. Neutrons
D. None