List of top Chemistry Questions asked in AP EAPCET

Match the following:
List-I (Glycosidic linkage) 
A. $\alpha$-1,4 
B. $\beta$-1,4 
C. $\alpha$-1,4, $\alpha$-1,6 
List-II (Polysaccharide) 
I. Amylose 
II. Amylopectin 
III. Cellulose

The number of P=O and P-O-P bonds present in the oxoacid of phosphorus, prepared by treating red P$_4$ with alkali, are respectively
Consider the following:
Statement-I: Nylon 6 is a condensation copolymer.
Statement-II: Nylon 6,6 is a condensation polymer of adipic acid and tetramethylene diamine.
The correct answer is

Match the following:
List-I (Process)
A. Hall-Heroult process
B. Mond process
C. Van-Arkel process
D. Zone refining process
List-II (Metal)
I. Ti
II. In
III. Al
IV. Ni

Which one of the following statements is not correct?
The co-ordination number of chromium in K[Cr(H$_2$O)$_2$(C$_2$O$_4$)$_2$] is
What is the indicator used in Argentometric titrations?
Consider the following cell reaction: 2Fe$^{3+}$(aq) + 2I$^-$ (aq) $\rightarrow$ 2Fe$^{2+}$(aq) + I$_2$(s). At 298 K, the cell emf is 0.237 V. The equilibrium constant for the reaction is 10$^x$. The value of x is (F = 96500 C mol$^{-1}$; R = 8.3 J K$^{-1}$ mol$^{-1}$)
In a Freundlich adsorption isotherm, if the slope is unity and k is 0.1, the extent of adsorption at 2 atm is (log 2 = 0.30)
For a first-order reaction, the ratio between the time taken to complete $\frac{3}{4}$th of the reaction and time taken to complete half of the reaction is
An element occurs in the body-centred cubic structure with an edge length of 288 pm. The density of the element is 7.2 g cm$^{-3}$. The number of atoms present in 208 g of the element is nearly
An aqueous solution containing 0.2 g of a non-volatile solute 'A' in 21.5 g of water freezes at 272.814 K. If the freezing point of water is 273.16 K, the molar mass (in g mol$^{-1}$) of solute A is [K$_f$(H$_2$O) = 1.86 K kg mol$^{-1}$]
At T(K), the vapor pressure of x molal aqueous solution containing a non-volatile solute is 12.078 kPa. The vapor pressure of pure water at T(K) is 12.3 kPa. What is the value of x?
Identify the incorrect statement about silica.
Which of the following is not associated with water molecules?
Which one of the following statements related to photochemical smog is not correct?
An alcohol X(C$_4$H$_{10}$O) on dehydration gave alkene (C$_4$H$_8$) as major product, which on bromination followed by treatment with Y gave alkyne C$_4$H$_6$. Alkyne C$_4$H$_6$ does not react with sodium metal. What are X and Y?
Consider the following:
Statement-I: Both BeSO$_4$ and MgSO$_4$ are readily soluble in water.
Statement-II: Among the nitrates of alkaline earth metals, only Be(NO$_3$)$_2$ on strong heating gives its oxide, NO$_2$, and O$_2$.
The correct answer is
In compound (X), hyperconjugation is present and in (Y), resonance effect is present. What are X and Y, respectively?
Observe the following reactions (g = gas):
I. N$_2$(g) + 3H$_2$(g) $\xrightarrow[\text{200 atm}]{\text{773K, X}}$ 2NH$_3$(g)
II. CO(g) + H$_2$O(g) $\xrightarrow[\text{673 K}]{\text{Y}}$ CO$_2$(g) + H$_2$(g)
III. CH$_4$(g) + H$_2$O(g) $\xrightarrow[\text{1270 K}]{\text{Z}}$ CO(g) + 3H$_2$(g)
Catalysts X, Y, Z respectively are
At 27$^{\circ}$C, 1 L of H$_2$ with a pressure of 1 bar is mixed with 2 L of O$_2$ with a pressure of 2 bar in a 10 L flask. What is the pressure exerted by gaseous mixture in bar? (Assume H$_2$ and O$_2$ as ideal gases)
The C$_p$ of H$_2$O(l) is 75.3 J mol$^{-1}$ K$^{-1}$. What is the energy (in J) required to raise 180 g of liquid water from 10$^{\circ}$C to 15$^{\circ}$C? (H$_2$O = 18 u)
If $\Delta_r H^{\ominus}$ and $\Delta_r S^{\ominus}$ are standard enthalpy change and standard entropy change respectively for a reaction, the incorrect option is
At T(K), consider the following gaseous reaction, which is in equilibrium: N$_2$O$_5 \rightleftharpoons 2$NO$_2 + \frac{1}{2}$O$_2$. What is the fraction of N$_2$O$_5$ decomposed at constant volume and temperature, if the initial pressure is 300 mm Hg and pressure at equilibrium is 480 mm Hg? (Assume all gases as ideal)
Observe the following molecules/ions. NH$_4^+$, NH$_3$, BF$_3$, OH$^-$, CH$_3^-$, H$^+$, CO, C$_2$H$_4$. The number of Lewis bases in the above list is