English
Maharashtra State BoardSSC (English Medium) 10th Standard

Choose the Correct Alternative and Rewrite the Following Sentence. Phenolphthalein is ___________ Type of Indicator.

Advertisements
Advertisements

Question

Choose the correct alternative and rewrite the following sentence.

Phenolphthalein is ___________ type of indicator. 

Options

  • Natural Indicator

  • Universal Indicator

  • Synthetic Indicator

  • None of the above.

MCQ
Advertisements

Solution

Synthetic Indicator

shaalaa.com
  Is there an error in this question or solution?
2013-2014 (October)

APPEARS IN

RELATED QUESTIONS

Write a word equation and then a balanced equation for the reaction taking place when:

Dilute hydrochloric acid reacts with magnesium ribbon.


Complete and balance the following chemical equation:

\[\ce{Zn_{(s)} + HCl_{(aq)} ->}\]


What happens when an acid reacts with a base? Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?


What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.


What ions are present in the solution of the following substance? (write the symbols only)

Hydrochloric acid


What ions are present in the solution of the following substance? (write the symbols only)

Sodium hydroxide


What ions are present in the solution of the following substance? (write the symbols only)

Potassium hydroxide


State two uses of the following compound:

Sodium hydroxide


State two uses of the following compound:

Hydrochloric acid


Phenolphthalein is a synthetic type of indicator.


With the help of suitable examples explain the term neutralization and the formation of –

  1. acidic,
  2. basic and
  3. neutral salts

A solution of NaCl

(i) will turn red litmus blue

(ii) will turn pH paper green

(iii) will turn blue litmus red

(iv) will not affect litmus


The table given below shows the reaction of a few elements with acids and bases to evolve Hydrogen gas.

Element Acid Base
A
✗
✗
B
✓
✓
C ✓ ✗
D ✓ ✓

Which of these elements form amphoteric oxides?


A student added 10 g of calcium carbonate in a rigid container, secured it tightly and started to heat it. After some time, an increase in pressure was observed, the pressure reading was then noted at intervals of 5 mins and plotted against time, in a graph as shown below. During which time interval did maximum decomposition take place?


During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to ______ 


To protect tooth decay, we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is


Acids present in fruits and vegetables are called ______ acids.


A salt may be ______.


______ change the colour of the indicators.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×