Quiz Chapter 2 - Chemistry103 ( Pharmacgy )
10 Questions
| Attempts: 279
.
Questions and Answers
- 1.The group 2A called ?
- A.
Alkali metal
- B.
Noble gases
- C.
Halogens
- D.
Alkali Earth metal
- 2.Which of the following elements consider metal ?
- A.
Na
- B.
C
- C.
N
- D.
He
- 3.The charge of elements in group 8A is :
- A.
+1
- B.
-1
- C.
-3
- D.
Zero
- 4.Which of the following compounds consider ionic ?
- A.
MgS
- B.
H2O
- C.
CH4
- D.
N2O3
- 5.The correct empirical formula produces from Li and N :
- A.
LiN
- B.
Li2N3
- C.
Li3N
- D.
Li3N2
- 6.Which of the following elements consider non-metal ?
- A.
Na
- B.
Cl
- C.
K
- D.
Al
- 7.Salt X3P2 , the X ion in this salt has 10 electrons , the metal X is :
- A.
Ca
- B.
Na
- C.
Mg
- D.
Al
- 8.The ionic compound from Al and N , Li and S respectively ?
- A.
AlN , LiS2
- B.
Al2N , Li2S
- C.
AlN , Li2S
- D.
AlN2 , LiS
- 9.When a metal and non-metal react , the ______ tends to lose electrons and the ______ tends to gain electrins .
- A.
Metal , metal
- B.
Non-metal , non-metal
- C.
Metal , non-metal
- D.
Non-metal , metal
- 10.Which pair of elements would you expect to exhibit the greatest similarity in their chemical and physical properties ?
- A.
C , N
- B.
O , S
- C.
K , Ca
- D.
H , He
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