List of practice Questions

The de Broglie wavelength associated with an electron accelerated through a potential difference of \( \frac{200}{3} \ \text{V} \) is nearly

What are X and Y respectively in the following set of reactions?

Which of the following will give a white precipitate with \( \text{AgNO}_3 \) solution?

Calculate the volume occupied by 4.4 g of CO$_2$ gas at 27°C and 1 atm pressure. (\( R = 0.0821 \, \text{L-atm/mol-K} \), Molar mass of CO$_2$ = 44 g/mol)

A compound contains 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass. What is its empirical formula?

The last part of the proctodaeum in a cockroach is:

Each annual ring in dicot stem comprises

The ratio of the currents i$_1$, i$_2$ and i$_3$ in the circuit is:

Two 1 L flasks at T(K) contain O₂ and helium with rms velocities of x m s^-1 and y m s^-1, respectively. What is the relationship between x and y?

The conjugate acid and base of ammonia are X and Y, respectively. What are the shapes of X and Y?

Choose the incorrect statement among the following

Match the following

The larva of Wuchereria exhibits

Which of the following are the accessory glands of human male reproductive system?
I. Skene glands
II. Bartholin glands
III. Seminal vesicles
IV. Lesser vestibular glands
V. Prostate gland
VI. Mammary glands
VII. Cowper's glands

If both parents have B blood groups (both are heterozygous), the expected blood groups in their children.

Establishment of Natural Committee for Environmental Planning and Coordination was established by the efforts of:

Choose the correct combination regarding mechanism of translocation:

Choose the correct statements among the following
I. Streptokinase is produced by Streptococcus.
II. Saccharomyces cerevisiae is used for commercial production of Ethanol.
III. Cyclosporin-A — blood cholesterol lowering agent produced by Trichoderma polysporum.
IV. Statin produced by yeast.

Match the following:

List - I	List - II
A) Morphine	IV) Pain killer
B) Cannabinoids	V) Dopamine
C) Cocaine	I) Cardiovascular system
D) Benzodiazepines	II) Tranquilizers

Match the following:

List - I	List - II
A) Morphine	IV) Pain killer
B) Cannabinoids	V) Dopamine
C) Cocaine	I) Cardiovascular system
D) Benzodiazepines	II) Tranquilizers

To increase the RMS speed of gas molecules by 25%, the percentage increase in absolute temperature of the gas is to be

When both the source of sound and observer approach each other with a speed equal to 10% of the speed of sound, then the percentage change in frequency heard by the observer is nearly

A coil of inductive reactance $\frac{1}{\sqrt{3}} \Omega$ and a resistance 1 $\Omega$ are connected in series to a 200 V, 50 Hz ac source. The time lag between voltage and current is

If 2 moles of an ideal monoatomic gas at a temperature of 27 °C is mixed with 4 moles of another ideal monoatomic gas at a temperature of 327 °C, then the temperature of the mixture of the two gases is

If the far point of a short sighted person is 400 cm, then the power of the lens required to enable him to see very distant objects clearly is