List of top Questions asked in AP POLYCET- 2019

Lenz's law gives
Mendeleeff's periodic table is based on
Total number of elements in Newland's periodic table is
A tangent is drawn from an external point P to a circle of 8 cm radius. If the length of the tangent is 15 cm then the distance between the centre of the circle and point P is
Which among the following does not involve the principle of electromagnetic induction?
The pair of equations 2x+3y= 5 and 6x+ky = 12 has no solution if k=
The value of x in the following chemical reaction is
\(C_3H_8 + xO_2 \rightarrow YCO_2 + zH_2O\)
The length, breadth and height of a room are 10 m, 10√2 m and 10 m respectively. The angle of elevation of a top corner of room from any point on a diagonal of the base of the room is
The refractive index of glass with respect to air is 2. The critical angle at their interface i
The rule which describes the electron distribution in degenerate orbitals of an atom is
The possible I values for a given n value are
Which of the following set of quantum numbers is not correct?
The correct order of energies for the electromagnetic spectrum is
The Quantum mechanical model of atom was proposed by
Which of the following is an example of acid?
Electrolysis of aqueous NaCl solution produces
The chemical name of plaster of Paris is
The colour of methyl orange indicator in HCl is
Which of the following is an example for neutralization reaction?
The tarnishing of silver spoon in presence of moisture is due to formation of
One mole of \(H_2\) gas contains how many molecules? 
Lead nitrate on reaction with potassium iodide gives yellow precipitate. The yellow color is due to
\(Pb(NO_3)_2 + 2KI \rightarrow PbI_2 + 2KNO_3\)
The organic compound with R---- COO-----R' functional group is prepared from
For extraction of highly reactive metal compounds from their ores, some impurities are added during the electrolysis process. The role of impurity is
The IUPAC name of IUPAC name