List of top Questions asked in Punjab PMET

Carborundum is the name of

The chemical which is known as the king of chemicals is

Soda ash is

Binding energy of nucleus is defined as

A thin convergent glass lens $ \mu =1.5 $ has a power of $ +5.0\,D $ . When this lens is immersed in a liquid of refractive index $ \mu _{1} $ it acts as a diverging lens of focal length $ 100\,cm $ . The value of $ \mu _{l} $ should be

Which one of the following types of drugs reduces fever?

Which one of the following types of drugs reduces fever ?

An inductor $ L,\,\,a $ capacitor of $ 20\mu F $ and a resistor of $ 10\Omega $ are connected in series with an $AC$ source of frequency $ 50\,Hz $ . If the current is in phase with the voltage, then the inductance of the inductor is

A rifle shoots a bullet with a muzzle velocity of $ 500\,m{{s}^{-1}} $ at a small target $ 50\,m $ away. To hit the target the rifle must be aimed (take$ g=10\,m{{s}^{-2}}) $

In an $ AC $ circuit the potential difference V and current i are given respectively by $ V=100\sin (100t) $volt and $ i=100\sin \left( 100t+\frac{\pi }{3} \right)mA $ The power dissipated in the circuit will be

An electron tube was sealed-off during manufacture at a pressure of $ 1.2\times 10^{-7}mm $ of mercury at $ 27^{\circ}C $ . Its volume is $ 100\,cm^{3} $ . The number of molecules that remain in the tube is

Hinsberg reagent, $C_{6}H_{5}SO_{2}Cl$ does not react with

Correct order of freezing point of $ 1\,M $ solution of sucrose, $ KCl,\,BaCl_{2}$ and $ AlCl_{3}$ is

The given figure gives electric lines of force due to two charges $ q_{1}$ and $q_{2}$ . What are the signs of the two charges?

The main difference between formic acid and acetic acid is that formic acid is

$ {C6H5Cl +CH3Cl->[Na /dry\, ether] C6H5CH3 + 2NaCl}$ This reaction is an example of

Two simple harmonic motions are given by $ x=A\sin (\omega t+\delta ) $ and $ y=A\sin \left( \omega t+\delta +\frac{\pi }{2} \right) $ act on a particle simultaneously, then the motion of particle will be

A block is resting on a piston which is moving vertically with SHM of period $1\, s$ . At what amplitude of motion will the block and piston separate?

Three point charges $ q,\,-2q $ and $ -2q $ are placed at the vertices of an equilateral triangle of side $ a $ . The work done by some external force to increase their separation to $ 2a $ will be

Ordinary glass is formed by mixing of

$NH_{3}$ gas is passed over heated copper oxide. It oxidises to

$ {CH2 = CH2 ->[HBr] X} {->[A KOH] Y} { ->[{Na_2CO_3}][{I_2}] Z}$ In the above reaction sequence, $ Z $ is

Which of the following compounds shows optical isomerism?

Lucas test is given fastly by

Which polymers occur naturally ?