An optically active alkyne a (c10h14) can be catalytically hydrogenated to butylcyclohexane. treatment of a with c2h5mgbr liberates no gas. catalytic hydrogenation of a over pd/c in the presence of quinoline poison and treatment of the product b with o3 and then h2o2 gives an optically active tricarboxylic acid c8h12o6. (a tricarboxylic acid is a compound with three

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

answer: they produce more slow than unicellular organisms.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l