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Chemistry | Periodic Table
Practice Chemistry | Periodic Table on Bissoy — browse topics below and open any question.
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Which of the following is used in pencils?
ক
Graphite
খ
Silicon
গ
Charcoal
ঘ
Phosphorous
What is the melting point of zinc?
ক
419oC
খ
600oC
গ
907oC
ঘ
950oC
Which of the following is an alkali?
ক
Neon
খ
Chlorine
গ
Sodium
ঘ
Helium
Which of the following is the strongest base?
ক
LiCH3
খ
LiF
গ
LiOH
ঘ
LiNH2
Which among the following is the most electronegative element?
ক
Flourine
খ
Bromine
গ
Iodine
ঘ
Oxygen
A mixture of sand and naphthalene can be separated by
ক
Fractional distillation
খ
Sublimation
গ
Chromatography
ঘ
Any of them
Which of the following is not a compound?
ক
Brass
খ
Quick lime
গ
Marble
ঘ
Soda ash
Which among the following has lowest electron affinity?
ক
Fluorine
খ
Chlorine
গ
Bromine
ঘ
Argon
Which one of the following elements has the lowest atomic mass?
ক
Lithium
খ
Nitrogen
গ
Hydrogen
ঘ
Helium
What are transition elements?
ক
Elements whose two outermost shells are incomplete
খ
Elements which possess properties of both, metals and non-metals
গ
They have eight electrons in the outermost shell
ঘ
Elements whose three outermost shells are incomplete
Which of the following is NOT a noble gas?
ক
Radon
খ
Krypton
গ
Xenon
ঘ
Hydrogen
Which of the following metals is found in free state?
ক
Sodium
খ
Gold
গ
Potassium
ঘ
Calcium
Which of the following is correctly paired?
ক
Sahriday ⟺ Communication
খ
Logos ⟺ Credibility of speaker
গ
Kairos ⟺ Timing of the communication
ঘ
Rhetoric ⟺ Using ornamental language
Which of the following is very reactive and kept in kerosene?
ক
Sodium
খ
Potassium
গ
Iodine<br>
ঘ
Bromine
Stainless steel is an alloy of
ক
Chromium and carbon
খ
Chromium, carbon and iron
গ
Chromium and iron
ঘ
Carbon and iron
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