List of practice Questions

Rolling alga is
Saffron is produced from
Sargasso sea is part of
Selaginella and Salvinia are homosporus. Similar kind of spores are produced in Selaginella and Salvinia.
The diagram represents the life cycle pattern of an angiosperm. Choose the correct combination of labelling numbered as 1 to 5.
The heterosporous pteridophyte belonging to the class lycopsida is
The sporophyte is the dominant phase
What is the similarity between gymnosperms and angiosperms ?
Which of the following groups of algae belongs to class Rhodophyceae?
Which of the following is a character of Rhodophyceae?
Which of the following is a phaeophycean alga ?
Which of the following is characteristic of ferns ?
Which of the following pigments are found in brown algae ?
Which of the following pteridophyte is heterosporous in nature?
Which of the following Pteridophytes belong to class Pteropsida?
Which of the following statements is incorrect about Cycas ?
Which of these is mismatched ?
Which one of the following is called maiden-hair fern ?
Which one of the following is the major difference between mosses and ferns ?
Which part of angiosperm is equivalent to the megasporophyll of Cycas ?
$0.1$ mole of a carbohydrate with empirical formula $CH_2O$ contains $1\, g$ of hydrogen. What is its molecular formula ?
0.126 g of acid required 20 mL of 0.1 N NaOH for complete neutralisation. The equivalent mass of an acid is
1.2 g of Mg (At. mass 24) will produce MgO equal to
$1 \,g$ of $Mg$ is burnt in a closed vessel containing $0.5\, g$ of $O_2$. Which reactant is limiting reagent and how much of the excess reactant will be left?
$10\, g$ of hydrogen and $64\, g$ of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be