FREE CHEMISTRY ONLINE TEST 06

1 / 10

Which of the following shows diagonal relationship with boron?

Magnesium

Beryllium

Lithium

Aluminium

2 / 10

Which one of the following gives a reddish-brown gas on reaction with concentrated sulfuric acid?

Lead nitrate

Potassium nitrate

Sodium chloride

Ammonium nitrate

3 / 10

Which of these will liberate dinitrogen gas.?

Sodium nitrate

Barium azide

All above

None

4 / 10

Which of the following statements are correct?

Diamond has directional covalent bonds

Glass is a man-made silicate

All above

None

5 / 10

Which of the following statements is correct about group 13 elements?

The stability of +1 oxidation state follows Tl>In>Ga.

Boron shows a maximum covalency of 4 in its compounds.

Aluminium is passive to concentrated nitric acid.

All above

6 / 10

Is boric acid a protic acid? Explain.

Yes, releases H⁺ ions

No, forms hydroxide ions directly

No, accepts electron pairs

Yes, donates protons

7 / 10

Is boric acid a protic acid? Explain.

Yes, releases H⁺ ions

No, forms hydroxide ions directly

No, accepts electron pairs

Yes, donates protons

8 / 10

Consider the compounds, BCl₃ and CCl₄. How will they behave with water? Justify.

Both react vigorously

Only BCl₃ undergoes hydrolysis

Both partially react

Only CCl₄ shows hydrolysis

9 / 10

Which of the following elements in the p-block has the highest oxidation state in its compounds?

Sulphur

Nitrogen

Phosphorus

Carbon

10 / 10

Which of the following oxoacids of phosphorus will have P–O–P bonds?

H₄P₂O₅

H₄P₂O₆

H₄P₂O₇

None

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FRER CHEMISTRY ONLINE TEST 06

FRER CHEMISTRY ONLINE TEST 06

About Saheb Shaik

FRER CHEMISTRY ONLINE TEST 06

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About Saheb Shaik