List of practice Questions

Which of the following statements about $CO_3^{2-}$ ion is correct?
Which of the following transition elements have melting point below $500^\circ$ C?
Which will release $NH_3$ on Reaction with $NaOH$.
Who discovered DNA fingerprinting
You are given an ammeter, a galvanometer and a voltmeter. From these, the device having maximum resistance is
Which of the following are formula of methanides? $Be_2C$ $CaC_2$ $Mg_2C_3$ $Al_4C_3$
Which is the chemical test for polysaccharide
Which is not true for cockroach?
Which alkali metal during flame test will show colour corresponding to maximum wavelength?
What product is formed when NH reacts with $\alpha$-ketoglutaric acid
What is the function of Bowman's capsule and Glomerulus
There are three bags $B_1, B_2$ and $B_3$. The bag $B_1$ contains 5 red and 5 green balls, $B_2$ contains 3 red and 5 green balls, and $B_3$ contains 5 red and 3 green balls. Bags $B_1, B_2$ and $B_3$ have probabilities $\frac{3}{10}, \frac{3}{10}$ and $\frac{4}{10}$ respectively of being chosen. A bag is selected at random and a ball is chosen at random from the bag. Then which of the following options is/are correct?
The time period of oscillation of a magnet in a vibration magnetometer is 1.5 sec. The time period of oscillation of another magnet similar in size, shape and mass but having 1/4 magnetic moment than that of the 1st magnet oscillating at the same place will be
The relation between Shear modulus $ (G) $ , Young?? modulus $ (T) $ and Poissons ratio $ (v) $ is _______
The process of removal of anther from the flower bud before it dehisces is called as
The given transistor operates in saturation region then what should the be value of $V_{BB}: (R_{out} = 200 \Omega, R_{in} = 100 K\Omega, V_{CC} = 3 volt, V_{BE} = 0.7 volt, V_{CE} = 0, \beta; = 200)$
The equivalent capacitance between A and B is,
Taking the radius of the earth to be $6400 \,km$, by what percentage will the acceleration due to gravity at a height of $100\, km$ from the surface of the earth differ from that on the surface of the earth?
Silicon carbide is an example of :
satellite revolve in radius R has a time period of revolution T. Find time period of a satellite if orbital radius is 9R?
Reduced coelom is found in:
Pancreatic juice/enzyme digests
Oxytocin and ADH are produced by hypothalamus and released from
Oxidation state of copper is +1 in
Order of acidic nature