1) Ethane is sp3 hybridized molecules and has ---- bond angle 190.5o✓✓✓ 90.5o 120.5o 45.5o 2) CH3COCH3 stands for ------ Acid Ester Alcohol Ketone✓✓✓ 3) A functional group in a molecule exhibits characteristic ------ Chemical properties✓✓✓ Odour change Physical properties Colour change 4) HCHO is an organic compound popularly known as ------ Methanoic acid Formic acid Formaldehyde✓✓✓ Ethanal 5) In the hybrids orbitals, as the s character increase, bond length ------- Weakens Increase Decrease✓✓✓ Stabilize 6) Ar-OH stands for ------- functional group Ester Aldehyde Ketone Phenol✓✓✓ 7) RNH2 stands for class of compound called -------- Amines✓✓✓ Amides Esters Aromatics 8) Diethylether is correctly represented by the formula CH3CH2OCH2CH3✓✓✓ CH3CH2CH3CH2 CH3OCH2CH3 CH3OCH3 9) RCHO stands for ----- functional group. Ester Ketone Aldehyde✓✓✓ Alcohol 10) 180o bond angle is characteristic of ------ molecules Oxidized Sp3 hybridized Sp hybridized✓✓✓ Sp2 hybridized --------------------------------------------------------------------------------- 1) The force due to a field is at a ___ angles to the equipotential surface at that point 30o Right angles✓✓✓ Parallel None of the above 2) The surface containing points of equivalent potential is called Quadrupole Isometric Electric intensity Equipotential✓✓✓ 3) The potential of electric dipole varies as 1/r 1/r2✓✓✓ r2 r3 4) Which one is a scalar quantity deceleration velocity Electric Potential✓✓✓ acceleration 5) Which type of potential have real significance Absolute potential None of the above Potential at infinity Potential difference✓✓✓ 6) The work done in taking a unit positive charge from one point to another in electric field is __ of the path chosen between the two points independent✓✓✓ dependent proportional 7) Potential gradient is measured in c/m All of the above V/m2 V/m✓✓✓ 8) Negative potential energy corresponds to Attractive forces✓✓✓ Minimum forces Equal forces Repulsive force 9) If q1 and q2 are positive, their potntial energy is Negative Positive✓✓✓ Small Large 10) The field of electric dipole varies as r-3✓✓✓ r-1 r-4 r-5 -------------------------------------------------------------------- 1) Pick the incorrect option Electric field is a scalar quantitym * Principle of superposition applies to electrostatic charges Charges are quantized According to the superposition principle, the resultant force F, acting on q is the vector sum of the force due to the individual forces 2)The force between two particles is inversely proportional to the square of distance between them and proportional to the product between the two is the statement of Dalton Coulomb * Einstein Thomson 3)The study of static charges is called Dynamics Electrostatics * Hydrostatics Polystatics 4) The properties of a charge include one of the following Spherical symmetry None of the options Potential Discreteness * 5)Coulomb\'s law applies to Point charges * All of the options Triangular charges Long charges 6) Choose the correct option F=q/E F=q/r2 F=E/q F=qE * 7) ___ is an electromagnetic radiation photon Beta radiation Gamma radiation * alpha rays 8) charging a body by rubbing is achieved through? friction * 9) Nuetral objects constitute of Equal charges * All of the options None of the options Unequal charges 10)Electric field lines are represented by __ lines of magnetism none of the option lines of pressure lines of force *