Which of the Following Reactions Is Not Spontaneous

question 99

Multiple Choice

Which of the following reactions is not spontaneous?

• A)Cu (s)+ 2HCl (aq)→ CuCl₂ (aq)+ H₂ (g)
• B)Mg (s)+ 2HCl (aq)→ MgCl₂ (aq)+ H₂(g)
• C)2Ni (s)+ H₂SO₄ (aq)→ Ni₂SO₄ (aq)+ H₂ (g)
• D)2Al (s)+ 6HBr (aq)→ 2AlBr₃ (aq)+ 3H₂ (g)
• E)Zn (s)+ 2HI (aq)→ ZnI₂(aq)+ H₂ (g)

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Definitions:

Concrete Operations

A stage in Piaget's theory of cognitive development, typically from ages 7 to 11, when children gain the ability to think logically about concrete events.

Sensorimotor Period

The first of Jean Piaget's four stages of cognitive development, ranging from birth to about 2 years old, where infants learn about the environment through sensory experiences and motor activities.

Egocentrism

The cognitive inability to differentiate between one's own perspective and that of others, often seen in early childhood.

Intuitive Thought

Intuitive thought is a type of thinking that relies on instinct and feelings rather than analytical reasoning, often occurring automatically or subconsciously.