1
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

Match the following Column I and Column II

Column I
(Reactions)
Column II
(Volume at STP)
A. $$\mathop {CaC{O_3}}\limits_{20\,g} \mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Decomposition}^\Delta } $$
I. $$0.896 \mathrm{~L~CO}_2$$
B. $$\mathop C\limits_{4.8\,g} \mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Combustion}^{Excess\,{O_2}}} $$
II. $$8.96 \mathrm{~L~CO}_2$$
C. $$\mathop {N{a_2}C{O_3}}\limits_{2.12\,g} \mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{}^{Excess\,HCl}} $$
III. $$4.48 \mathrm{~L~CO}_2$$
D. $$\mathop {CO}\limits_{1.12\,g} \mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Combustion}^{Excess\,{O_2}}} $$
IV. $$0.448 \mathrm{~L~CO}_2$$

A
A - I, B - II, C - III, D - IV
B
A - III, B - II, C - IV, D - I
C
A - IV, B - III, C - II, D - I
D
A - I, B - II, C - IV, D - III
2
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

ortho-silicate ion is

A
$$\mathrm{SiO}_2^{2-}$$
B
$$\mathrm{SiO}_4^{4-}$$
C
$$\mathrm{Si}_2 \mathrm{O}_4^{6-}$$
D
$$\mathrm{SiO}_3^{-}$$
3
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

Which is correct about zero order reaction?

A
Rate of reaction is dependent of concentration
B
Unit of rate constant is concentration$${ }^{-1}$$ time$$^{-}$$
C
The plot of concentration of reactant versus time is linear with negative slope and non-zero intercept.
D
The plot of concentration of reactant versus time is linear with positive slope and non-zero intercept.
4
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

Which of the following compounds is used as the starting material for the preparation of potassium dichromate?

A
$$\mathrm{K}_2 \mathrm{SO}_4 \cdot \mathrm{Cr}_2\left(\mathrm{SO}_4\right)_3 \cdot 24 \mathrm{H}_2 \mathrm{O}$$ (chrome alum)
B
$$\mathrm{PbCrO}_4$$ (chromite yellow)
C
$$\mathrm{FeCr}_2 \mathrm{O}_4$$ (chromite)
D
$$\mathrm{PbCrO}_4 \cdot \mathrm{PbO}$$ (chrome red)
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