List of top Questions asked in AP EAPCET

\(A \rightarrow\) products, is a first order reaction. The time required to decompose \(A\) to half its initial amount is \(60\) minutes. The rate constant of the reaction \((in\ s^{-1})\) is

The colour of \(Mg(OH)_2\) precipitate formed when it is precipitated in the presence of magneson reagent is

Milk-water mixture when viewed by the reflected light appears in which colour?

Which of the following source materials generate \(SO_2\) that is used in contact process?

Which of the following statement is not correct?

At \(298K\), the vapour pressure of pure water is \(25\ torr\). The vapour pressure of water, when \(12\ g\) of urea \((\text{molar mass }=60\ g\ mol^{-1})\) and \(36\ g\) of glucose \((\text{molar mass }=180\ g\ mol^{-1})\) is dissolved in \(100\ g\) of water at the same temperature \((in\ torr)\) is

Which of the following solution has the highest freezing point?

F-centers are formed in \(NaCl\) crystal if it is heated with \(Na\) vapour. The above is due to

What is the molar conductivity of \(CH_3CO_2H\) at infinite dilution?
Given that, \[ \lambda_m^\circ\left((CH_3CO_2)_2Ba\right)=x_1\ S\ cm^2\ mol^{-1} \] \[ \lambda_m^\circ(BaCl_2)=x_2\ S\ cm^2\ mol^{-1} \] \[ \lambda_m^\circ(HCl)=x_3\ S\ cm^2\ mol^{-1} \]

An unsaturated organic compound, \(X\), on reaction with hot, acidified \(KMnO_4\) gives succinic acid. What is \(X\)?

Borax dissolves in water and forms a product of boron \((X)\). Identify the compound \(X\).

The number of six membered carbon rings and five membered carbon rings present in Buckminsterfullerene are \(x\) and \(y\) respectively. The sum of \(x\) and \(y\) is:

The IUPAC name of the following compound is

\(CaCO_3\) was reacted with dil HCl to form three products. One of the products formed, when passed into slaked lime gave \(X\). What is \(X\)?

A few grams of sodium carbonate is added to \(1\ L\) of water. What is the pH or pH range of the solution?

From the following data at \(25^\circ C\), calculate \(\Delta_rH^\circ\) for \(H_2O(g)\longrightarrow 2H(g)+O(g)\).

Identify the direction/process in which the entropy decreases

For ammonia formation from constituent elements, the expression for \(K_c\) is

The conjugate base of \(H_3O^+\) is

Which of the following reaction is not an example of hydrolysis reaction?

What is the atomic mass of Fe?
Given abundance of \[ {}^{54}_{26}Fe = 10\% \] \[ {}^{56}_{26}Fe = 85\% \] \[ {}^{57}_{26}Fe = 5\% \]

If two gases \(CH_4\) and \(SO_2\), are allowed to enter from the two ends of a 1 km long vacuum tube at the same time, where will the gases meet from the \(CH_4\) end?

The set of amphoteric oxides among \(ZnO, Tl_2O_3, In_2O_3, B_2O_3, PbO, SnO_2\) is

If \(50\%\) of \(1\ M\ Na_2SO_4\) is dissociated in aqueous solution of density \(1.2\ g\ mL^{-1}\), what is the molality of \(Na^+\) ions in the solution?

Identify the pair of species with same geometries