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.

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 in taste 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

Identify the incorrect statement. a. Acids are sour in taste whereas bases are bitter in taste and soapy to touch. b. Acids turn blue litmus red and bases turn red litmus blue. c. Solutions of substances tat show different colours in acidic, basic and neutral solutions are called indicators. d. An acid and a base neutralise each other to form a salt and a salt is always neutral.

A

a, d

B

c

C

b, c

D

d

Consider the following pairs: (i) The tip of the tongue - sweet taste (ii) The edge next to tip of the tongue - sour taste (iii) The back of the tongue - bitter taste (iv) The middle of the tongue - salty taste Which of the above pairs are correctly matched?

A

(i) and (ii)

B

(iii) and (iv)

C

(ii) and (iii)

D

(i) and (iii)

Which of the following statement is/are true? I. Acids are sour in taste II. Bases are bitter in taste

A

Both I and II

B

Only II

C

Only I

D

Neither I nor II

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

Mineral acids are stronger acids than carboxylic acids because (i) Mineral acids are completely ionised. (ii) Carboxylic acids are completely ionised. (iii) Mineral acids are partially ionised. (iv) Carboxylic acids are partially ionised.

A

(i) and (iv)

B

(ii) and (iii)

C

(i) and (ii)

D

(iii) and (iv)

In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: I. All truth are sour II. Some sour are not sweet Conclusions: I. Some truth being sweet is a possibility II. Some sour being truth is a possibility

A

Only conclusion I follows

B

Only conclusion II follows

C

Both the conclusion follows

D

Neither conclusion I nor II follows

E

Either conclusion I or II follows

In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: I. All truth are sour II. Some sour are not sweet Conclusions: I. Some sweet are not sour II. No truth is sweet

A

Only conclusion II follows

B

All follows

C

Either conclusion I or II follows

D

None of the conclusion follows

E

Only conclusion I follows

Which of the following statements about acids are correct? (i) All compounds containing hydrogen are acidic. (ii) Acids generate H+ ions in aqueous solution. (iii) Aqueous solution of acids change the colour of turmeric into red. (iv) Aqueous solution of acids conduct electricity.

A

(ii), (iii) and (iv)

B

(ii) and (iv)

C

(ii) and (iii)

D

(i), (ii) and (iv)

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All acids are bases. All bases are carbohydrates. Conclusions: I. All acids are carbohydrates. II. No acid is a carbohydrate.

A

Both conclusions I and II follow

B

Only conclusion II follows

C

Only conclusion I follows

D

Either conclusion I or II follows

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.

Related Questions