CHM 116 CBT Questions.

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1. When the solution of a sample was heated and passed with hydrogen sulphide gas. A solid black compound formed. The chemical reaction involved is represented by one of the following

            A. Pb + S2-                      PbS                        B. Fe +  S2-                         FeS

            *C. Cu + S2-                    CuS                       D. Cd + S2-                            CdS

 

2. If a brown precipitate readily dissolved in HCl and added with KCN to give a blood red colour, then the cation present is

            A. Cr3+        B. Fe2+    *C. Fe3+          D. Cd3+

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APA

Consults, E. (2022). CHM 116 CBT Questions.. Afribary. Retrieved from https://afribary.com/works/chm-116-cbt-questions

MLA 8th

Consults, Education "CHM 116 CBT Questions." Afribary. Afribary, 09 Jun. 2022, https://afribary.com/works/chm-116-cbt-questions. Accessed 03 Jul. 2022.

MLA7

Consults, Education . "CHM 116 CBT Questions.". Afribary, Afribary, 09 Jun. 2022. Web. 03 Jul. 2022. < https://afribary.com/works/chm-116-cbt-questions >.

Chicago

Consults, Education . "CHM 116 CBT Questions." Afribary (2022). Accessed July 03, 2022. https://afribary.com/works/chm-116-cbt-questions