Fact Book
12096. City
City : alexandria
River : nile
Country : egypt.
12097. City
City : amsterdam
River : amsel
Country : netherlands.
12098. City
City : antwerp
River : scheidt
Country : belgium.
12099. City
City : baghded
River : tigris
Country : iraq.
12100. City
City : bangkok
River : menam
Country : thailand.
12101. City
City : belgrade
River : danube
Country : yugoslavia.
12102. City
City : berlin
River : spree
Country : germany.
12104. City
City : budapest
River : danube
Country : hungary.
12106. City
City : canton
River : canton
Country : china.
12107. City
City : glasgow
River : clyde
Country : scotland.
12108. City
City : hamburg
River : elbe
Country : germany.
12109. City
City : karachi
River : indus
Country : pakistan.
12110. City
City : lahore
River : ravi
Country : pakistan.
12111. City
City : london
River : thames
Country : england.
12112. City
City : montreal
River : ottawa
Country : canada.
12113. City
City : moscow
River : moskow
Country : russia.
12114. City
City : new york
River : hudson
Country : u.s.a..
12116. City
City : quebec
River : st.lawrence
Country : canada.
12117. City
City : rangoon
River : irrawadi
Country : mayanmar.
12120. City
City : vienna
River : danube
Country : austria.
12121. City
City : warswa
River : vistula
Country : poland.
12123. Compound
Compound : dry ice
Chemical Name : solid carbondioxide
Chemical Formula : co2.
12124. Compound
Compound : slaked lime
Chemical Name : calcium hydroxide
Chemical Formula : ca (oh)2.
12125. Compound
Compound : bleaching powder
Chemical Name : calcium oxychloride
Chemical Formula : caocl2.
12126. Compound
Compound : nausadar
Chemical Name : ammonium chloride
Chemical Formula : nh4cl.
12127. Compound
Compound : caustic soda
Chemical Name : sodium hydroxide
Chemical Formula : naoh.
12128. Compound
Compound : rock salt
Chemical Name : sodium chloride
Chemical Formula : nacl.
12129. Compound
Compound : caustic potash
Chemical Name : potassium hydroxide
Chemical Formula : koh.
12130. Compound
Compound : potash alum
Chemical Name : potassium aluminium sulphate
Chemical Formula : k2so4 al2 (so4)3.24h2o.
12131. Compound
Compound : epsom
Chemical Name : magnesium sulphate
Chemical Formula : mgso4.7h2o.
12132. Compound
Compound : quick lime
Chemical Name : calcium oxide
Chemical Formula : cao.
12133. Compound
Compound : plaster of paris
Chemical Name : calcium sulphate
Chemical Formula : (caso4) 1/2 h2o.
12134. Compound
Compound : gypsum
Chemical Name : calcium sulphate
Chemical Formula : (caso4) .2h2o.
12135. Compound
Compound : green vitriol
Chemical Name : ferrous sulphate
Chemical Formula : feso4.7h2o.
12136. Compound
Compound : mohr's salt
Chemical Name : ammonium ferrous sulphate
Chemical Formula : feso4 (nh4)2 so4.6h2o.
12137. Compound
Compound : blue vitriol
Chemical Name : copper sulphate
Chemical Formula : cuso4.5h2o.
12138. Compound
Compound : white vitriol
Chemical Name : zinc sulphate
Chemical Formula : znso4.7h2o.
12139. Compound
Compound : marsh gas
Chemical Name : methane
Chemical Formula : ch4.
12140. Compound
Compound : vinegar
Chemical Name : acetic acid
Chemical Formula : ch3cooh.
12141. Compound
Compound : potash ash
Chemical Name : potassium carbonate
Chemical Formula : k2co3.
12142. Compound
Compound : hypo
Chemical Name : sodium thiosulphate
Chemical Formula : na2s2o3.5h2o.
12143. Compound
Compound : baking powder
Chemical Name : sodium bicarbonate
Chemical Formula : nahco3.
12144. Compound
Compound : washing soda
Chemical Name : sodium carbonate
Chemical Formula : na2co3.10h2o.
12145. Compound
Compound : magnesia
Chemical Name : magnesium oxide
Chemical Formula : mgo.
My Account / Test History
Science Facts
The English rhyme Ring-a-Ring-o'-Roses dates from the time of the bubonic plague.The ‘roses' refer to red spots that appeared before boils started, the ‘posies' to flowers people carried around to counteract the bad air that they thought caused plague, and the sneezing was an early symptom.
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