List of practice Questions

To obtain a $p$-type germanium semiconductor, it must be doped with
The smallest unit of classification is:
The secretory immunoglobulin present in the colostrum of mother is
The second overtone of a closed pipe and the third overtone of an open pipe are in unison. The ratio of their fundamental frequencies are:
The enthalphy change of a reaction does not depend upon
Potato is included in solanaceae family because
The art of electroplating was given by
A useful member of lanthanides is
Phosphorus on reaction with cone $ HN{{O}_{3}} $ yields
Lamarck published his views on concepts of evolution in 1809 in his book:
In some substances, charge can flow at ordinary temperature, but not at very low temperatures. These substances are called
To yield milk, cow is given
Presence of vestigial organs is in favour of which of the following theories?
An eye specialist prescribes spectacles having combination of convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. The power of this lens combination in diopters is
In a resonance column experiment the first resonance is obtained at 16 cm and the second at 50 cm. The value of end correction is:
Which of the following instrument is used to measure temperature of the source from its thermal radiations?
Which of the following is an alloy of aluminium?
Which of the following is not an aromatic compound?
Which of the following is not emitted by radioactive substance?
Which of the following is the largest and edible bud?
Which of the following prevents the photo-oxidation and destruction of pigments ?
The mass moment of inertia, of a body depends upon
The hydride ion $H^-$ is stronger base than its hydroxide ion $OH^-$. Which of the following reactions will occur if sodium hydride (NaH) is dissolved in water?
The genetic material of bacteria is present as:
The formula dichlorobis (urea) copper (II) is