Chemistry-
General
Easy
Question
The reaction, 
Is called
- Laderer Mannasse reaction
- Claisen condensation
- Benzoin condensation
- Etard reaction
The correct answer is: Laderer Mannasse reaction
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Statement - II To compress or to expand an ideal unstretched spring by equal amount, same work is to done on spring.
Statement - I One end of ideal massless spring is connected to fixed vertical wall and other end to a block of mass m initially at rest on smooth horizontal surface. The spring is initially in natural length. Now a horizontal force F acts on block as shown. Then the maximum extension in spring is equal to maximum compression in spring.
Statement - II To compress or to expand an ideal unstretched spring by equal amount, same work is to done on spring.
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Student I, II and III perform an experiment for measuring the acceleration due to gravity (g) using a simple pendulum. They use different lengths of the pendulum and/or record time for different number of oscillations. The observations are shown in the table
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