A They conduct electricity B They have sour taste C They give H+ ions in water D They change the color of litmus paper to blue.. An oxyacid contains A oxygen and hydrogen only.[r]
Trang 1WORKSHEET 7A CLASSIFICATION OF INORGANIC
COMPOUNDS
1 Which one of the following is not a strong acid?
2 Which one of the following is a common property
for both acids and bases?
B) Their solutions conduct electricity
C) They react with K
D) They have a bitter taste
3 Which acid is misnamed (named wrongly)?
A) HCl : hydrochloric acid
4 I HCl + Cu(OH)2
III Ca + NaOH
Which of the above reactions take(s) place?
A) I B) II C) III D) I-II
5 When metal X reacts with HCl, hydrogen gas is
produced Which of the following is X?
A) Ag B) Zn C) Cu D) Hg
6 Which one of the following reacts with H2SO4 to
form salt and water?
7 Which of the following turns litmus paper into red?
8 What is the color of phenolphthalein in basic
solutions?
A) colorless B) red C) blue D) violet E) orange
9 For a strong acid and a strong base:
I Conductivity of electricity
II Production of hydrogen gas by the reaction with amphoteric metals
III Dissociation in water Which one(s) is/are common?
A) I B) II C) III D) I-II-III
10 Which one(s) is/are the properties of the acids?
II They form salts with bases
III Their aqueous solutions conduct electricity A) I B) II C) I-II D) I-II-III
11 Which of the following statements is/are true for
acidic solutions?
II They react with Zn metal
III They react with bases
A) I B) II C) I-II D) II-III
Figure 14) Acids have sour taste.
WORKSHEET 7B CLASSIFICATION OF INORGANIC COMPOUNDS
Trang 21 Which is not true for a strong base solution?
A) It conducts electricity very well
B) It forms salt with an acid
C) It turns litmus paper into blue
2 I HCl : strong acid
IV HF : weak acid
Which one(s) of the given statements is/are correct?
A) I B) II C) I-III D) I-IV
3 Which of the following is an incorrect naming?
A) HCl: hydrochloric acid
C) NaOH: sodium hydroxide
4 I They change the color of litmus paper
II They react with Zn
III Their taste is bitter
Which one(s) is (are) true for both acids and bases?
A) I B) I-II C) I-III D) II-III
5 Which one of the following is wrong for acids?
A) They have sour taste
C) Their aqueous solutions conduct electricity
D) They turn phenolphthalein into violet
6 Which of the following is a weak acid?
7 I It conducts electricity
II It turns the color of litmus paper into red
III It shows a basic property
Which one(s) of the above is/are true for aqueous
solution of NaOH?
A) I B) II C) III D) I-III
8 I NH3 solution
Which one(s) of the above solutions change(s) the color of the litmus paper into blue?
A) I B) II C) I-II D) I-III
9 I NaOH + HCl
II NaOH + Zn
Which of the above reactions will take place?
A) I B) I-II C) I-III D) II-III
10 Which one of the following is not true for bases?
A) They change the color of the litmus paper into blue
B) They dissociate into their ions in water
C) Their water solutions conduct electricity
11 For the solutions of HCl and KOH
I Both solutions conduct electricity
Which one(s) is/are true?
A) I B) I-II C) I-III D) I-II-III
Fi gure 15) Bases have slippery feeling
WORKSHEET 7C CLASSIFICATION OF INORGANIC COMPOUNDS
1 Which of the following metals reacts with NaOH
solution?
Trang 3A) Mg B) Ag C) Cu D) K
2 Which one of the following compounds turns the
color of litmus paper into red?
3 An element X reacts with HCl and NaOH X can be
A) Zn B) Na C) Cu E) K
4 Which salt will be produced when potassium
hydroxide reacts with sulfuric acid?
A) K2SO4 B) K2S C) KSO4 D) KS
5 HNO3 + Ba(OH)2
What will be in the right side of the equation when
the above reaction is completed and balanced?
6 Which of the following compounds dissociates into
ions in water completely?
A) H2CO3 B) Cu(OH)2 C) NH3 D) H2SO4
7 Which of the following metals can not react with
acids or bases?
A) Zn B) Na C) Cu D) Li
8 Given the reaction;
What will be the sum of the coefficients of the
products when this reaction is completed and balanced
with the smallest whole numbers?
A) 2 B) 3 C) 4 D) 5
9 An aqueous solution contains more OH- ions
is/are not true?
I The solution changes the color of litmus
paper to blue
II The solution can be a weak acid
III The solution conducts electricity A) II B) I-II C) I-III D) II-III
10 Which one of the following is an acid?
11 I HCl, HF, HCN
Which one(s) of above groups contain(s) only weak acids and bases?
A) I B) II C) III D) I-II
Figure 17)Neutralization reaction.
WORKSHEET 7D CLASSIFICATION OF INORGANIC COMPOUNDS
1 The aqueous solutions of soap, vinegar, and lemon
are dropped onto the litmus paper Which choice is
true for color changes of litmus paper?
Soap Vinegar Lemon
A) red blue blue B) red red blue
Trang 4C) red blue red
D) blue red red
2 Which is false for NH3 and HCl?
A) When they react with each other, water is
produced
formed
C) When they react with each other, a salt forms
3 Which one of the following is false for acids but
true for bases?
B) They change the color of litmus paper
C) Acids have sour taste and bases have bitter taste
D) They do not react with magnesium
4 Given the reaction; NH3 + H3PO4
What will be in the product side of the equation
when the reaction is completed and balanced with the
smallest whole numbers?
5 Which one of the following solutions conduct
electricity very well?
A) acetic acid solution
B) ammonia solution
C) hydro sulfuric acid solution
D) lithium hydroxide solution
6 Which one is a weak but very poisonous acid?
7 Which acid is found in stomach?
8 Which one is the acid that can dissolve glass?
9 Which one is true for salts?
A) They are covalent compounds
B) They are ionic compounds
C) Their water solutions don’t conduct electricity D) They have low melting points
Figure 18) Acidity and Basecity.
WORKSHEET 7E CLASSIFICATION OF INORGANIC COMPOUNDS
1 Which of the following is one of the common
properties of acids?
A) They have high melting points
B) They are good conductor of heat
C) They change the color of litmus paper to blue D) They have sour taste
2 Acids taste
3 Acetic acid is found in significant quantities in
Trang 54 Acids generally release H2 gas when they react with
A) nonmetals B) active metals
C) semimetals D) inactive metals
5 Acids react with
A) bases to produce salts and water
B) water to produce bases and salts
C) salts to produce bases and water
D) neither bases, salts, nor water
6 Which of the following is (are) true for acidic
solutions?
II react with Zn metal
III react with bases
A) I only B) II only C) III only D) I, II and III
7 For acids;
I They produce hydrogen ion in water
II They produce salt with bases
Which statement(s) is/are correct?
8 Which one of the following is wrong for acids?
A) They conduct electricity
B) They have sour taste
D) They change the color of litmus paper to blue
9 Which of the following is not an acid?
10 Which one of the following is an acid?
11 In which of the following foods there is an acid?
A) Bread B) Rice C) Sunflower oil D) Lemon
12 Which of the following acid is different from others
with respect to naming?
13 Which of the following is NOT a strong acid?
14 Which of the following is a triprotic acid?
15 Which of the following is a diprotic acid?
16 Which of the following is a binary acid?
17 The name of a binary acid
A) has no prefix
B) ends with the suffix -ous.
C) begins with the prefix bi-.
D) begins with the prefix hydro-.
18 An oxyacid contains
A) oxygen and hydrogen only
B) oxygen, hydrogen, and one other element
C) oxygen, hydrogen, and two other elements
D) oxygen and an element other than hydrogen
19 Which of the following is NOT an oxyacid?
20 Which of the following is perchloric acid?
21 Which of the following is the strongest acid known?
WORKSHEET 7F CLASSIFICATION OF INORGANIC COMPOUNDS
1 For the concentrated solution of strong acid
I It has sour taste
Which of the above is (are) always correct?
A) I only B) II only C) I and II D) I, II and III
2 Which of the following is cyanic acid?
3 Which one of the followings doesn't react with HCl
solution?
4 I.X reacts with Al metal and form H2 gas
II Changes the litmus paper to red
III Its water solution conducts electricity
At least, which of the above must be known that X is an acid?
Trang 6A) I only B) II only C) III only D) I and II
5 What acid is manufactured in largest quantity?
6 Bases taste
A) soapy B) sweet C) sour D) bitter
7 Bases feel
A) rough B) slippery C) moist D) dry
8 Strong bases are
A) strong electrolytes B) nonelectrolytes
9 Hydroxides of Group 1 metals
A) are all strong bases
B) are all acids
C) are all weak bases
D) might be either strong or weak bases
10 In water, hydroxides of Group 2 metals
A) are all strong bases
B) are all acids
C) are all weak bases
D) might be either strong or weak bases
11 Which of the following is a strong base?
12 Which of the following is a weak base?
13 Which of the following is (are) true for basic
solution?
II they are electrical conductor
A) I only B) I and II C) I and III E) I, II and III
14 Which one of the following can not react with
NaOH?
15 Which of the following compounds change the color
of litmus paper to blue?
16 Which of the following compounds produce OH- ion
into its water solution?
17 Which of the following is not one of the properties
of bases?
A) They have bitter taste
B) They react with active metals and produce hydrogen gas
C) Their solutions conduct electricity
D) They react with acids
18 Which one of the following oxides reacts with NaOH
?
19 KOH is strong base and HNO3 is strong acid The properties of salt formed by the reaction of KOH and
I It is neutral salt
II Its solutions conduct electricity
-Which statement(s) is/are correct?
Figure 19) Acid rain.