Table 4 cline ( 2 - 5 ) multicolumn(1)(c|)(} & multicolumn{3)(c|)( Metal sulfate solution ) Metal & A sulfate & B sulfate & C sulfate & D sulfate A & times & times & checkmark & times B & checkmark & times & checkmark & times C & times & times & times & times D & checkmark & checkmark & checkmark & times checkmark shows that a displacement reaction took place times shows that a displacement reaction did not take place. Write metals A, B, C and D in order of reactivity. Give a reason for your order of reactivity. Most reactive qquad qquad qquad Least reactive qquad qquad Reason qquad qquad

Question

Question

Table 4 cline ( 2 - 5 ) multicolumn(1)(c|)(} & multicolumn{3)(c|)( Metal sulfate solution ) Metal & A sulfate & B sulfate & C sulfate & D sulfate A & times & times & checkmark & times B & checkmark & times & checkmark & times C & times & times & times & times D & checkmark & checkmark & checkmark & times checkmark shows that a displacement reaction took place times shows that a displacement reaction did not take place. Write metals A, B, C and D in order of reactivity. Give a reason for your order of reactivity. Most reactive qquad qquad qquad Least reactive qquad qquad Reason qquad qquad

Answer 1

Most Reactive: D : B : A Least Reactive: C Reason: D is the most reactive because it can displace all the other metals from their salt solutions. B displaces A and C from their salt solutions hence is less reactive than D but more than A. A can only displace C hence is less reactive than B and more than C. C is least reactive as it does not displace any other metal from its salt solution.

Answer 2

## Step1: Like in a classic reactivity series, a displacing (more reactive) metal knocks out other metals from their compounds/salt. With consideration to that, we start by studying each row carefully, where reactions occur (tickemarks) or do not occur (crossmarks). ## Step 2: Metals A, B, C and D are reacted one by one with sulphates of A, B, C, D metals in rows. - From the Shaded Row A, only displacement occurs with C hence C is less reactive than A. We denote this as : A > C - From the Shaded Row B, B displaces A and C hence, more reactive, denoted as: B> A, C - Shaded row C doesn't show displacement reaction at all, while row D shows displacement reaction with all hence we get C<D. ## Step 3: Combine all deductions from step 2 into a logical order. Stick to the basic fundamentals of displacement rule: A highly reactive element displaces a less reactive element. According to the cues from shaded rows: B displaces A and C, D displaces all and A only displaces C; Least displacement happens with C; After putting together and reordering all statements: ### **B > A > C < D** This indicates 1. D is the most reactive of all; it displace every other metal. 2. C doesn't displace any other, thus least reactive. 3. B only displaces A and C because A is less reactive, and C is the least reactive. 4. A happens to be more reactive than C since it displaces C.

Question

Answer

Answer

Explain

Hot Questions