List of practice Questions

Which one of these will not react with acetylene ?

Wind pollination is common in

Which enzyme converts glucose into alcohol

The pH of human small intestine is around 7.5 and the pH of large intestine can be 5.5. As substances travel from the small intestine to large intestine, what would happen to the H ions concentration?

The oxidation state of ${P}$ in ${H_3PO_3}$ is

The oxidation state of Fe in ${K_3[Fe(CN)_6]}$ is

The metal which gives hydrogen with cold dil. ${HNO_3}$ is

The length of a sonometer wire $AB$ is 110 cm. Where should the two bridges be placed from A to divide the wire in three segments whose fundamental frequencies are in the ratio of 1:2:3

The length of a simple pendulum which makes 20 oscillations in 36 seconds (at place where the acceleration due to gravity $9.75 m/s^2$ ) is

The drug chloramphenicol is an/a

The edge length of a $fcc$ ionic crystal is 508 pm. If the radius of cation is 110 pm, the radius of anion will be

Ranikhet disease is a

Presence of air bladder, cycloid scales and terminal mouth are the characteristic features of which class?

Necrosis in leaves occurs due to the deficiency of

Jacobson?s organ is concerned with

Increase in concentration of CO around leaf causes

In the reaction, ${PH_3 + HI ? PH_4I, PH_3}$ is behaving like

In grafting, the stock and scion should be joined

In case of physical adsorption there is desorption when

In an experiment, on the measurement of g using a simple pendulum, the time period was measured with an accuracy of 0.2% while the length was meausred with an accuracy of 0.5%. The percentage accuracy in the value of g thus obtained is

Green muffler is related to _________ pollution.

During expiration the diaphragm becomes

Detritus food chain begins with

${CsCl}$ has a crystal structure of

${Cu^{2+}}$ is