English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories
0

2006-06-14 22:52:05 · 12 answers · asked by miss.genius 1 in Science & Mathematics Chemistry

12 answers

rust, in botany, name for various parasitic fungi of the order Uredinales and for the diseases of plants that they cause. Rusts form reddish patches of spores on the host plant. About 7,000 species are known. Some grow entirely on one plant; others require two hosts, plants of two species, in order to complete their life cycles. Cedar rust, for instance, grows on cedar and on apple trees, needing both for development. Blister rust of pine grows on pines and either currant or gooseberry bushes. Black stem rust Puccinia graminis is one of the most destructive to wheat, rye, and other grasses; barberry is an alternate host. Rusts attack all cereal crops and many fruits, vegetables, forage crops, ornamental plants, and forest trees. Rusts are hard to eradicate; control measures include the use of rust-resistant varieties of seed and the elimination of alternate hosts in agricultural areas. Rusts are classified in the kingdom Fungi, phylum (division) Basidiomycota, order Uredinales.

2006-06-14 22:57:03 · answer #1 · answered by Anonymous · 0 0

Define Rust

2017-01-14 06:45:24 · answer #2 · answered by Anonymous · 0 0

Rancidification is the decomposition of fat, oils and different lipids by hydrolysis or oxidation, or the two A chemical compound or substance that inhibits oxidation. A substance, which includes nutrition E, nutrition C, or beta carotene, concept to guard physique cells from the harmful effects of oxidation. In huge words, the interplay between a fabric and its atmosphere that leads to a degradation of the particular, mechanical, or maybe esthetic properties of that textile. greater truly, corrosion is many times linked with a metamorphosis interior the oxidation state of a metallic, oxide, or semiconductor. Any of numerous powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides shaped on iron and iron-containing components by low-temperature oxidation interior the presence of water. Any of numerous metallic coatings, fairly oxides, shaped by corrosion. A stain or coating resembling iron rust. Deterioration, as of skill, hence of state of no interest or forget. Botany. Rust fungus. A plant ailment brought about by a rust fungus, characterised by reddish or brownish spots on leaves, stems, and different components. a good brown.

2016-12-08 09:21:05 · answer #3 · answered by Anonymous · 0 0

Any of various powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides formed on iron and iron-containing materials by low-temperature oxidation in the presence of water.
Any of various metallic coatings, especially oxides, formed by corrosion.
A stain or coating resembling iron rust.
Deterioration, as of ability, resulting from inactivity or neglect.
Botany.
Rust fungus.
A plant disease caused by a rust fungus, characterized by reddish or brownish spots on leaves, stems, and other parts.
A strong brown.

2006-06-14 22:57:34 · answer #4 · answered by crazzy_em 3 · 0 0

# a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
# a reddish-brown discoloration of leaves and stems caused by a rust fungus
# corrode: become destroyed by water, air, or an etching chemical such as an acid; "The metal corroded"; "The pipes rusted"
# the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
# corrode: cause to deteriorate due to the action of water, air, or an acid; "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink"
# any of various fungi causing rust disease in plants
# become coated with oxide
# of the brown color of rust

2006-06-14 23:51:01 · answer #5 · answered by Anonymous · 0 0

Rust (Fe2O3) is oxidised iron, caused by keeping iron exposed to (or in contact with) with water or moisture for too long. To prevent iron rusting, it is often coated, usually with tin, nickel or zinc.

2006-06-14 22:58:50 · answer #6 · answered by Robert C 5 · 0 0

redox reaction between iron and oxygen with water to form iron(3)oxide
2Fe + O2 + H2O= Fe(OH)2 wich further reacts with O2
4Fe(OH)2 + O2= 2(Fe2O3.xH2O) + 2H2O

2006-06-21 20:33:21 · answer #7 · answered by eugene l 1 · 0 0

a process in which metal comes in contact with water and oxygen causing oxidisation resulting residual of red deposit.

2006-06-14 22:56:47 · answer #8 · answered by bunty_tibrewal 2 · 0 0

Kalawang........ nakakabit sa metal dahil sa moisture at acid na dala ng temperature....

2006-06-14 22:55:28 · answer #9 · answered by zeitgeist_jay 1 · 0 0

oxidation of metal

2006-06-14 22:54:53 · answer #10 · answered by Anonymous · 0 0

fedest.com, questions and answers