Define flame.

Define clone.

Define gametes ?

Make labelled diagram of candle flame.

Alkanes generally burn with a clean flame . Why?

In which phylum do you find flame cells?

Beryllium and magnesium do not impart colour to bunsen flame. Why?

A student forgot to add the reaction mixture to the round bottomed flask at 27@ C but put it on the flame.After a lapse of time,he realised his mistake.By using a pyrometer,he found that the temperature of the flame was 477^@C . What fraction of air would have been expelled out?(2+3)

Abida and Ramesh were doing an experiment in which water to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame.whose water will get heated in a shorter time?

take some carbon compounds ( naphthalene , camphor , alcohol ) one by one on a spatula and burn them * observe the nature of the flame and note whether smoke is produced * place a metal plate above the flame . Is there a deposition on the plate in case of any of the compounds ?