1
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When copper metal is treated with cold and dilute nitric acid, it forms

A

NO

B

$\mathrm{N}_2 \mathrm{O}$

C

$\mathrm{N}_2 \mathrm{O}_5$

D

$\mathrm{NO}_3$

2
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following is not a colourless compound?

A

NO

B

$\mathrm{N}_2 \mathrm{O}_4$

C

$\mathrm{N}_2 \mathrm{O}$

D

$\mathrm{NO}_2$

3
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statement is not true about interstitial complexes?

A

Small atom like $\mathrm{C}, \mathrm{H}$ or N are trapped inside crystal lattice

B

They are usually non-stoichiometric

C

They generally retain metallic conductivity

D

They are chemically very active

4
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following molecules is colourless?

A

$\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}$ (crystal)

B

$\mathrm{CuSO}_4$ (anhydrous)

C

$\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}(\mathrm{aq})$

D

$\left[\mathrm{CuCl}_4\right]^{2-}(a q)$

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