Classify the following in to 3 groups and give appropriate headings. Thalamus, Corpora-quadrigemina, Pons, hypothalamus, Cerebrum, Medulla Oblongata.

Classify the given terms into two columns and give appropriate headings. rubber, Glucose, amino acids, drugs, gums, spices,cholesterol, Fatty acids

Classify the given terms into three columns and give appropriate headings. Striated, heart muscle, intercalated disc, biceps, visceral organs, no striation.

Arrange the following words into two groups and give and appropriate heading to each group. Testes, oviduct, cloaca, Bidder's canal, ovaries, urinogenital duct, vasa efferentia, cloaca.

Categorise and classify the following organisms and arrange them in a table with separate columns and provide appropriate headings. Exocoetus, Physalia, Ascaris, Apis, Locusta, Corvus, Pitta, Hydra, Sepia, Ancylostoma.

Consider the following statements and arrange in the order of true or false I) Group 2 elements are known as alkaline earth metal except Be II) Be has the highest standard reduction potential among group 2 members III) Mg burns with dazzling brilliance in air to give MgO and Mg (NO_(3))_(2) IV) Calcium and barium metals are used to remove air from vacuum tubes (1) TTTT (2) FFFF (3) TTFT (4) TFFT

Following are a group of compound showing acidic behaviour CH_3COOH .Give the IUPAC names of compounds.

Paragraph Carboxylic acids are distinctly acidic because they ionize in water to give hydronium ions: RCOOH+H_(2)O hArr RCOO^(-) +H_(3)O^(+) The acidic strength depends upon the extent of ionizations of the acid and the stability of the anion formed. The acidic strength can also be expressed in terms of dissociation constant K_(a) or pK_(a) which are related as pK_(a)= -log K_(a) . Most unsubstituted carboxylic acids have K_(a) values in the range of 10^(-4) to 10^(-5) (pK_(a) =4-5) . The substitutents have marked effect on the acidic strength of carboxylic acids. Any group that stabilizes the carboxylate ion more than the carboxylic acid group will increase the acidic strength, and the group which destabilizes the carboxylate group more than the carboxylic acid group will decrease the acidic strength. In a similar manner, the electron-releasing groups makes benzoic acid weaker, while the electron-withdrawing groups make benzoic acid stronger. The ortho isomer of every substituted benzoic acid (whether electron releasing or electron withdrawing) is the strongest among the three isomers due to ortho effect. Which of the following is the weakest acid?