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Which of the following statement(s) is/are CORRECT? I. Acids are sour in taste and generate H+ ions. II. Acids are sour in taste and generate OH– ions. III. Bases are bitter intaste and generate OH– ions.
A
Only I and III
B
Only I and II
C
Only II and III
D
All I, II and III
Correct Answer:
Only I and III
Consider the following statements.
1. Acids are sour in taste and change the colour of blue litmus to red.
2. Bases are bitter and change the colour of red litmus to blue.
3. Litmus is a natural indicator.
Which of the statements given above is/are correct?
A
1 and 2
B
1 and 3
C
2 and 3
D
1, 2 and 3
Which of the following statement(s) is/are CORRECT? I. Bases are soapy to touch. II. Bases generate OH– ions. III. Metal oxides dissolve in water to form Acidic solution.
A
Only I and II \
B
Only I and II
C
Only II and III
D
All I, II and III
Statement 1: Thermophilic flat sour spoilage generally doesn’t take place at home. Statement 2: Thermophilic flat sour spoilage has one difficulty that there is only formation of acids and no gas leaks.
A
True, False
B
True, True
C
False, False
D
False, True
Consider the following statements regarding genetic code and choose the correct answer:
1. The genetic code is degenerate
2. In all amino acids the first two bases are the same in all the codons that represent a particular amino acid
3. The number of codons an amino acid can claim is proportional to the frequency of the amino acid in proteins
4. Amino acids with codons ending in U or A also have codons ending in C or G respectively
A
Only 1, 2 and 3 are true
B
Only 2, 3 and 4 are true
C
Only 1, 3 and 4 are true
D
Only 1 and 4 are true
Directions :
In each of the following questions a statement is given, followed by two conclusions. Give answer :
Statement :
The taste of food contributes to the intake of nourishment which is essential for the survival of human beings.
Assumptions :
I. Human beings take food for the enjoyment of its taste.
II. Human beings experience the taste of food.
A
Only assumption I is implicit
B
Only assumption II is implicit
C
Either I or II is implicit
D
Neither I nor II is implicit
E
Both I and II are implicit
In a certain code language "nce po tam" means "boys are studying", "me tam sam" means "grapes are sour" and "tam po me" means "boys are grapes". which of the following represents "sour" in that code language?
A
tam
B
me
C
sam
D
cannot be determined
Sour Cream frequently develops a bitter flavor due to continued bacterial proteolytic enzyme activity when stored for more than?
A
1 week
B
3-4 weeks
C
6-8 weeks
D
10-12 weeks
In a certain code, 592 means 'grapes are sweet', 374 means 'I like oranges' and 267 means 'oranges are sour'. Which digit represents sour?
A
9
B
5
C
6
D
cannot be determined
Which one of the following statements is not true/false?
1. An acid that is completely ionized with ions produces large amounts of H
+
ions. for example HCl, H2SO
4
, HNO
3
2. A weak acid that is partially ionized in water produces small amounts of H
+
ions. for example - CH
3
COOH, H
2
CO
3
, H
2
SO
3
A
Only 2 is correct
B
Both 1 and 2 are correct
C
Both 1 and 2 are incorrect
D
Only 1 is correct
In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they
seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. All stars are white.
II. All white are moon.
III. No moon is blue.
Conclusions:
I. Some moon are stars.
II. No blue is stars.
III. Some white are stars.
IV. Some blue are white.
A
Only conclusion (I), (II) and (III) follow.
B
Only conclusion (III) and (IV) follow.
C
Only conclusion (I), (II) and (IV) follow.
D
Only conclusion (II), (III) and (IV) follow.