Consider the following statements and select the incorrect statement/s from the codes given below:1. The addition of detergent or soap decreases the viscosity of water and thus increases the cleaning ability2. If a clean and dry needle is kept slowly on the surface of water, it floats due to surface tension of waterChoose the appropriate code:

Consider the following statements and select the incorrect statement/s from the codes given below:
1. The addition of detergent or soap decreases the viscosity of water and thus increases the cleaning ability
2. If a clean and dry needle is kept slowly on the surface of water, it floats due to surface tension of water
Choose the appropriate code:

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Explanation:

• Both the given statements are examples of surface tension property of water
• If a clean and dry needle is kept slowly on the surface of water, it floats due to surface tension of water
• The addition of detergent or soap decreases the surface tension of water and thus increases the cleaning ability
• Surface Tension is the property of a liquid by virtue of which it has the tendency to have the area of its free surface minimum as if it were under tension like a stretched elastic membrane
• A liquid drop attains spherical shape due to surface tension as for given volume, sphere has minimum surface area