Which among the following were not discovered by the time , Mendeleev published his periodic table?
A. Lathanides
B. Actinides
C. Noble Gases
D. Halogens
✅ The correct answer is option C.
Which among the following first increases than decreases in a Period of a periodic table?
A. metallic property
B. Chemical Reactiveness
C. Valency
D. Electron affinity
✅ The correct answer is option C.
Which among the following is used in preparing windows for X-Ray Tubes ?
A. Barium
B. Beryllium
C. Magnesium
D. Calcium
✅ The correct answer is option B.
Mizoroki-Heck reaction is catalyzed by which of the following metals?
A. Rhodium
B. Sodium
C. Palladium
D. Osmium
✅ The correct answer is option C.
Which among the following is a correct definition of Cyclotron?
A. Accelerator of charged atomic particles
B. Device for detection of High Energy atomic radiation
C. Device for storing electric charge
D. Device for storing heat
✅ The correct answer is option A.
Adsorption is used commonly in which of the following processes?
A. Purification of solids
B. Purification of liquids
C. Making scrubbers
D. Chromatography
✅ The correct answer is option D.
In which of the following Mercury is a constituent?
A. Cinnabar
B. Chile saltpeter
C. Calamine
D. Gold
✅ The correct answer is option A.
Calamine lotion which is used as an antipruritic (anti-itching agent) to treat mild pruritic conditions contains which of the following?
A. Zinc
B. Calcium
C. Magnesium
D. Sodium
✅ The correct answer is option A.
The primary part of Liquefied Petroleum Gas LPG is ______?
A. Butance
B. Methane
C. Propane
D. Ethane
✅ The correct answer is option C.
Which among the following is Quick Silver?
A. Aluminium
B. Mercury
C. Lead
D. Zinc
✅ The correct answer is option B.