ধাতুর বিবর্ণতা অক্সিডেসন দ্বারা সৃষ্ট

Noun:

দু্যতিহানি, বিবর্ণতা, ম্লানতা, মরিচা,

Verb:

অনুজ্বল হত্তয়া, বিবর্ণ হত্তয়া, ম্লান হত্তয়া, মরিচা ধরান, অনুজ্বল করা, বিবর্ণ করা, ম্লান করা, কলঙ্কিত করা, মরিচা ধরা,

tarnishes's Usage Examples:

On exposure to air, chalcopyrite tarnishes to a variety of oxides, hydroxides, and sulfates.

It is fairly soft and slowly tarnishes in air.

It tarnishes to a yellowish or brownish color and gives a black streak.

Californium slowly tarnishes in air at room temperature.

It also occurs in anhedral masses and tarnishes on exposure to air.

It is a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.

It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.

Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a steel kitchen.

Silver tarnishes with age, and so this pearl now appears black.

Bornite has a brown to copper-red color on fresh surfaces that tarnishes to various iridescent shades of blue to purple in places.

"No bail if one tarnishes country's image".

perception that their cars are intended for an older generation because it tarnishes the brand's image in the eyes of younger buyers.

143 Å; Z = 9 Identification Colour Pale brass-yellow to bronze-yellow, tarnishes to iridescence Crystal habit Typically acicular (needle-like) often in.

vigour of the reaction with water or the speed at which the metal surface tarnishes in air, appears to be potassium > sodium > lithium > alkaline earth metals.

"Family squabble tarnishes Korbel wine empire".

Silver requires a good deal of care, as it tarnishes and must be hand polished, since careless or machine polishing ruins the.

1 Crystal system Isometric Identification Color Silvery white, tarnishes easily Crystal habit Dendritic crusts, fine-grained inclusions Cleavage.

1 Alters to tarnishes to dull on exposure Other characteristics Non-fluorescent, nonmagnetic.

tarnishes's Meaning':

discoloration of metal surface caused by oxidation

Synonyms:

stain; fleck; defile; blob; maculate; darken; blot; spot; sully;

Antonyms:

brighten; clear up; stay; lighten;