Option “D” is correct. Analytical Reagent (AR) is a chemical compound of a known high standard of purity.
22.
What is the full form of “AMU”?
a.
b.
c.
d.
Option “A” is correct. An atomic mass unit (AMU) is defined as a mass equal to one twelfth the mass of an atom of carbon-12. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu. An atom of sulfur-32 has a mass of 31.972 amu.
23.
What is the full form of “AWACS”?
a.
b.
c.
d.
Option “A” is correct. An airborne early warning and control (AEW&C) system is an airborne radar picket system designed to detect aircraft, ships, vehicles, missiles, and other incoming projectiles at long ranges and perform command and control of the battlespace in an air engagement by directing fighter and attack aircraft strikes. AWACS (Airborne Warning and Control System) is the name of the specific system installed in the E-3 and Japanese Boeing E-767 AEW&C airframes, but is often used as a general synonym for AEW&C.
24.
What is the full form of “AS”?
a.
b.
c.
d.
Option “B” is correct. Ammonium sulfate is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia. A high-melting (decomposes above 280?) white solid which is very soluble in water (70.6 g/100 g water at 0?; 103.8 g/100 g water at 100?), it is widely used as a fertilizer for alkaline soils.
25.
What is the full form of “AN”?
a.
b.
c.
d.
Option “D” is correct. Ammonium nitrate (AN) is a crystal-like white solid which is made in large industrial quantities. Its biggest use is as a source of nitrogen for fertiliser, but it is also used to create explosives for mining.
26.
What is the full form of “ADP”?
a.
b.
c.
d.
Option “A” is correct. Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells. ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atom of ribose.
27.
What is the full form of “Ac”?
a.
b.
c.
d.
Actinium
Option “D” is correct. Actinium (Ac) is a silvery radioactive metallic element. Actinium glows in the dark due to its intense radioactivity with a blue light. Actinium was discovered in 1899 by Andre-Louis Debierne, a French chemist, who separated it from pitchblende. Friedrich Otto Giesel independently discovered actinium in 1902.
28.
What is the full form of “ABS”?
a.
b.
c.
d.
Option “D” is correct. Acrylonitrile butadiene styrene (ABS) is a common thermoplastic polymer. Its glass transition temperature is approximately 105 °C (221 °F). ABS is amorphous and therefore has no true melting point.
29.
What is the full form of “AIDS”?
a.
b.
c.
d.
Option “D” is correct. Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV). By damaging your immune system, HIV interferes with your body’s ability to fight infection and disease.
30.
What is the full form of “AACC”?
a.
b.
c.
d.
Option “B” is correct. AACC (formerly known as the American Association for Clinical Chemistry) is a global scientific society dedicated to clinical laboratory science and its application to healthcare. AACC’s current president is Carmen Wiley, PhD, and the association headquarters are located in Washington, D.C. (United States).