List of practice Questions

Gun metal is an alloy of copper and tin with:
Critical temperature can be defined as the temperature
Which of the following sets represents all endodermal structures?
Conjoint, collateral, endarch and open vascular bundles are found in:
Calorimeters are made of which of the following?
Bismuth chloride $(BiCl_3)$, on hydrolysis, yields a white precipitate of
Nitrogen is unreactive at room temperature but becomes reactive at elevated temperatures (on heating) or in the presence of catalysts. In nitrogen molecules, there is extensive delocalization of electrons.
In crystal lattice, size of the cation is larger in a tetrahedral hole than in an octahedral hole. The cations occupy more space than anions in crystal packing.
Electrons are ejected from a certain metal when either blue or violet light strikes the metal surface. However, only violet light causes electron ejection from a second metal. The electrons in the first metal require less energy for ejection.
Azolla pinnata is used as a biofertilizer in rice cultivation. Azolla performs nitrogen fixation with the help of symbiotic bacterium Bacillus sp.
Alpine forests consist of dwarf shrubs mainly of junipers, silver firs and rhododendrons. Alpine forests occur in the Himalayas above the altitude of 3500 metres.
Acetylcholine participates in the nerve impulse transmission across a synapse. Acetylcholine is secreted by adrenergic fibres.
A special line will be seen for a $2p_x \to 2p_y$ transition. Energy is released in the form of waves of light when the electron drops from $2p_x$ to $2p_y$ orbital.
Animals belonging to order rodentia have
Sweat glands, in human skin, are located in the
Wharton?? duct is the duct of
Where the conversion of harmful prussic acid into potassium sulphocyanide takes place ?
An ecological pyramid of biomass is the representation of the ecosystem??
Chordae tendinae are found in
Which of the following gland controls egg production and moulting in insects ?
Absolute ether is diethyl ether, which
A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction B. At the position MNQ the speed of the ring is v and the potential difference developed across the ring is
The hybrid state of sulphur in $ SO_{4}^{2-} $ is:
Which of the following compound would exhibit co-ordination isomerism?
Which of the following hydroxides, is a strongest base?