List of top Questions asked in Andhra Pradesh Polytechnic Common Entrance Test- 2019

Lenz's law gives

If the points A(5, 3), B(8, 5), C(x, y) and D(7, 2) are consecutive vertices of a parallelogram then (x, y) = A(5, 3), B(8, 5), C(x, y)=

The possible I values for a given n value are

The correct order of energies for the electromagnetic spectrum is

Which of the following set of quantum numbers is not correct?

The rule which describes the electron distribution in degenerate orbitals of an atom is

The Quantum mechanical model of atom was proposed by

The chemical name of plaster of Paris is

The tarnishing of silver spoon in presence of moisture is due to formation of

Electrolysis of aqueous NaCl solution produces

Which of the following is an example for neutralization reaction?

The colour of methyl orange indicator in HCl is

Which of the following is an example of acid?

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
\(Pb(NO_3)_2 + 2KI \rightarrow PbI_2 + 2KNO_3\)

Electronic configuration of C in its exited state is

For extraction of highly reactive metal compounds from their ores, some impurities are added during the electrolysis process. The role of impurity is

The organic compound with R---- COO-----R' functional group is prepared from

The IUPAC name of

The value of x in the following chemical reaction is
\(C_3H_8 + xO_2 \rightarrow YCO_2 + zH_2O\)

The first synthesized organic compound in laboratory is

The bond angle in H₂O molecule is HO

Heating of carbonate ore in absence of air is called

Match the following

a	Haematite	i	\(HgS\)
b	Cinnabar	ii	\(Fe_3O_4\)
c	Hornsilver	iii	\(Fe_2O_3\)
d	Magnetite	iv	\(AgCl\)

Element 'A' forms tripositive ion and element 'B' forms dinegative ion. The chemical formula of the compound formed with A and B will be