A) Which of the following statements is TRUE? A) Ammonium nitrate is a good expl

Question

A) Which of the following statements is TRUE?

A) Ammonium nitrate is a good explosive.

B) Sodium nitrite is used as a meat preservative.

C) NO2 reacts with water to form nitric acid.

D) Hydrazine is a good reducing agent.

E) All of the above are true.

B) Which of the following statements is TRUE?

A) Silicon atoms are too large to form pi bonds between them.

B) Silicates are covalent atomic solids that contain silicon and oxygen.

C) Silicon is the most abundant element in the Earth's crust.

D) Silicon is one of the strongest oxidizing agents.

E) All of the above are true.

C)Which of the following statements is TRUE?

A) Coke is composed of charcoal and air.

B) Activated carbon has a low surface area.

C) Heating wood in the absence of air produces charcoal.

D) Carbon monoxide is nontoxic.

E) None of the above is true.

Explanation / Answer

A)

E) All of the above are true

Ammonium nitrate is used in high explosive devices. NO2 reacts with water to produce nitric acid and nitrous acid. Sodium nitrite is used as a preservative in meat industry. Hydrazine is a good reducing agent.

B)

B) Silicates are covalent atomic solids that contain silicon and oxygen

Oxygen is the most abundant element in Earth's crust.

C) C) Heating wood in the absence of air produces charcoal.

Burning wood in the absence of oxygen produces charcoal. Activated carbon has high surface area. Hence used for adsorption. Carbonmonoxide is toxic. It binds with hemoglobin.

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