List of practice Questions

Two ideal batteries of $emf V _{1}$ and $V _{2}$ and three resistances $R _{1}, R _{2}$ and $R _{3}$ are connected as shown in the figure. The current in resistance $R _{2}$ would be zero if
Which one of the following is an example for biodegradable polyester?
Which one of the following is wrongly matched?
Which structures perform the function of mito- chondria in bacteria?
Williamson?? synthesis of preparing dimethyl ether is a/an
Which of the following feature(s) is/are common to both wind and water pollinated flowers? I. Pollen grains are long and ribbon-like II. Stigma is large and feathery III. The flowers are not colourful IV. The flowers do not produce nectar
Which of the following does not apply to ascomycetes?
Magnetic moment 2.83 BM is given by which of the following ions? (At. no. Ti =22, Cr=24, M n=25, N i=28)
IUPAC name of the compound
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from $0.75\, g$ of sample neutralized $10\, mL$ of $ {1 \, M \, H_2SO_4}$. The percentage of nitrogen in the soil is :
In a common emitter transistor amplifier an increase of $50 \,\mu A$ in the base current causes an increase of $1 \,mA$ in the collector current. The change in emitter current is
If $force (F)$, $velocity (V)$ and $time (T)$ are taken as fundamental units, then the dimensions of mass are
A scrubber in the exhaust of a chemical industrial plant removes
The correct order of solubility of the sulphates of alkaline earth metals in water is $Be > Mg > Ca > Sr > Ba$. This is due to
Which is the correct sequence of solubility of carbonates of alkaline earth metals?
Considering normal incidence of ray, the equivalent refractive index of combination of two slabs shown in figure is:
Find out the mismatched pair.
A drug addict showed symptoms such as increased appetite, chest pain, redness eyes, increased urination. He was possibily taking
The brain disease caused due to accumulation of amyloid $\beta$ -peptide is
Which of the following is a 'cyanophage'?
Aerobic respiration produces more usable chemical energy than fermentation, because fermentation involves
Which one of the following correctly describes the location of some body parts in the earthworm (Pheretima) ?
Hypothetical plant hormones are
Which one of the following shows heterothallism?
A person sitting at rest experiences a temporary cessation of breathing after forced deep breathing for a few minutes. This is due to