List of practice Questions

Electromagnetic waves are transverse in nature is evident by

The hypothetical complex chloro diaquatriammine cobalt (III) chloride can be represented as

A lift of mass 1000 kg which is moving with acceleration of $1 m/s^2$ in upward direction, then the tension developed in string which is connected to lift is :-

In electrolysis of NaCl when Pt electrode is taken then $H_2$ is liberated at cathode while with Hg cathode it forms sodium amalgam :-

What is the cause of ''Green house effect'' :-

When an oscillator completes $100$ oscillations its amplitude reduced to $ \frac{1}{3} $ of initial value. What will be its amplitude, when it completes $200$ oscillations?

A mass is suspended separately by two different springs in successive order then time periods is $t_1$ and $t_2$ respectively. If it is connected by both spring as shown in figure then time period is $t_0$, the correct relation is

A rod of length is 3 m and its mass acting per unit length is directly proportional to distance x from one of its end then its centre of gravity from that end will be at :-

Which of the following statements is true:-

An atom has electronic configuration $ 1s^2, 2s^2 \, 2p^6, \, 3s^2 \, 3p^6 \, 3d^3, \, 4s^2$, you will place it in which group : -

What will happen if ligaments are cut or broken :-

Which of the following is correct match

In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true : -

A capacitor of capacitance $ C_{1} $ is charged to a potential $V$ and then connected in parallel to an uncharged capacitor of capacitance $ C_{2} $ .The final potential difference across each capacitor will be

The velocity of electromagnetic wave is parallel to :-

Displacement between maximum potential energy position and maximum kinetic energy postion for a particle executing simple harmonic motion is

Heat of combustion $ \Delta H^{\circ}$ for $ C ( s ), H _{2}( g )$ and $CH _{4}( g ) $ are -94,-68 and $-213 \,Kcal / mol $ then $\Delta H ^{\circ}$ for $C ( s )+2 H _{2}( g ) \to CH _{4}( g )$ is:-

Which of the following shows maximum number of oxidation states

A plant of $F_1$ generation with genotype "AABbCC". On selfing of this plant what is the phenotypic ratio in $F_2$ -generation : -

Enzymes are made up of :-

CH₂–C–CH₃O and CH₂–C–CH₃O are

IUPAC name of the following CH2 = CH – CH2 – CH2 – C ≡ CH is

$ n- $ propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent :-

Manipulation of DNA in genetic engineering became possible due to the discovery of

Which of the following is the example of sex linked disease