List of practice Questions

After absorbring a slowly moving neutron of Mass mN (momentum $\approx$ 0) a nucleus of mass M breaks into two nuclei of masses $m_1$ and $5m_1$ ($6\, m_1 = M + mN$ ) respectively. If the de Broglic wavelength of the nucleus with mass $m_1$ is $\lambda$, the de Broglie wevelength of the nucleus will be:
Dialysis fluid contains all the constituents as in plasma except
The cause of opening or closing of the stomata mainly depends upon change in the turgidity of
The process of ATP synthesis from ADP in the presence of light in chloroplasts is called
What percent (%) of CO is transported as bicarbonate (HCO) with the help of the enzyme carbonic anhydrase
A typical angiosperm embryo sac at maturity is
In the absence of heart or circulatory system in plants, upward water flow through the xylem can achieve fairly high rates by
Which is known as a barrier layer
A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach its other end. During the journey of the insect the angular speed of the disc
A parallel plate condenser has a uniform electric field $E\, (V/m)$ in the space between the plates. If the distance between the plates is $d\, (m)$ and area of each plate is $A \,(m^2)$ the energy (joules) stored in the condenser is :
Which of the following has highest ionic radii?
Which of the following is correctly stated as it happens in the common cockroach ?
Which of the following is not a peroxy acid?
Which of these do not form Grignard reagent?
Which one of the following aspects is an exclusive characteristic of living things ?
Which one of the following diagrams represents the placentation in Dianthus ?
Which one of the following is most reactive towards electrophilic reagent?
Which one of the following is not considered as a part of the endomembrane system
$XO$ type of sex determination is seen in:
Which of the following does, not show $S _{ N _{2}}$ reaction?
Which of the following compounds has the lowest melting point ?
Which is referred to as ??ungs of the Planet Earth?
Which among these is produced by distillation of fermented broth? (i) Whisky (ii) Wine (iii) Beer (iv) Rum (v) Brandy
What is the value of electron gain enthalpy of $Na^+$ if $IE_1$ of $Na = 5.1 \, eV$?
What are those structures that appear as 'beads-on-string' in the chromosomes when viewed under electron microscope ?