Reading of a Barometer going down is an indication of:___________?
A. Snow
B. Storm
C. Intense heat
D. Rainfall
Chemistry Mcqs
Actinides are the elements with atomic number from:
Actinides are the elements with atomic number from:
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 to 43
Carbon,Diamond and Graphite are together called:___________?
Carbon,Diamond and Graphite are together called:___________?
A. Allotrope
B. Isomers
C. Isomorphs
D. Isotopes
The term allotrope refers to one or more forms of a chemical element that occur in the same physical state. … Allotropes may display very different chemical and physical properties. For example, graphite and diamond are both allotropes of carbon that occur in the solid state
According to Journal of Biological Chemistry 158, human brain and heart are composed of ________water?
According to Journal of Biological Chemistry 158, human brain and heart are composed of ________water?
A. 75%
B. 81%
C. 73%
D. 89%
According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
Which is artificial manmade fiber?
Which is artificial manmade fiber?
A. Boron
B. Saffron
C. Rayon
D. None of these
When Ammonia is used as a refrigerant in vapour compression cycle?
When Ammonia is used as a refrigerant in vapour compression cycle?A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerant
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerant
Example of ‘globular’ proteins is __________ ?
Example of ‘globular’ proteins is __________ ?
A. Peptide
B. Enzymes
C. Primary protein
D. Secondary proteins
A scale which used to measure the Hydrogen Ion concentration in a solution is known as__________?
A scale which used to measure the Hydrogen Ion concentration in a solution is known as__________?A. Thermometer
B. Viscometer
C. PH Scale
D. Stagmometer
B. Viscometer
C. PH Scale
D. Stagmometer
which Compound Destroy The OZONE ?
which Compound Destroy The OZONE ?A. CFCs
B. CH3COOH
C. BOTH A & B
D. None Of These
B. CH3COOH
C. BOTH A & B
D. None Of These
Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).
In whole Periodic Table which element Is Most Reducing Agent ?
In whole Periodic Table which element Is Most Reducing Agent ?A. Chlorine
B. lithium
C. Helium
D. Neon
B. lithium
C. Helium
D. Neon
Lithium (Li) is the strongest reducing agent in the periodic table.