SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

Write the answer to the following.

Explain the similarity and difference in two events, namely adding NaOH to water and adding CaO to water.

Choose the correct alternative and rewrite the following sentence.

Which of the following is not required to find the pH of a given solution? 

The chemical reactions in which heat is liberated are called endothermic reactions.

A _____________ mirror is used by a dentist.

Grills of doors and windows are always painted before they are used.

(b) State whether the following statements are true or false:

(i) Magnetic poles exist in pairs.

(ii) Global warming is a desirable aspect of the intensified greenhouse effect.

(c) Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________

(b) State whether the following statements are true or false:

(i) Magnetic poles exist in pairs.

(ii) Global warming is a desirable aspect of the intensified greenhouse effect.

Considering the relationship in the first pair, complete the second paie :

AgCI : White :: CuI₂ : ___________

Define: Endothermic reaction 

In which equipment/s do you find ___________________

Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?

Answer the following question:
State the effect on the magnetic needle in Oersted’s experiment when:  
(a) the current is passed through the wire.  
(b) the current through the wire is increased
(c) the current through the wire is reversed. 

Name the first artificial satellite sent by Russia in space.

Read the given passage and answer the following questions:

The home electrical connection consists of ‘live’, ‘neutral’ and ‘earth’ wires. The ‘live’ and the ‘neutral’ wires have potential difference of 220 V. The ‘earth’ is connected to ground. Due to a fault in the equipment or if the plastic coating on the ‘live’ and the ‘neutral’ wires gives a way the two wires come in contact with each other and a large current flows through it producing heat. If any inflammable material (such as wood, cloth, plastic, etc.) exists around that place it can catch fire. Therefore a fuse wire is used as a precautionary measure.

1. Name the two wires having potential difference of 220 V.
2. What is a short circuit?
3. Write the function of a fuse.

Writing a chemical reaction in brief by using chemical formulae is called as _______.