Question
In a certain code language, (i) âagnoscreniaâ
means poisonous spiderâ (ii) âdelanocreniaâ means poisonous snakeâ (iii) âagnosdeeryâ means brown spiderâ Which of the following words could mean âblack widow spiderâ in that language?Solution
From the words the code for âspiderâ is âagnosâ, but the codes for âblackâ and âwidowâ are not given. The codes for âblackâ and âwidowâ should be different from those given in the statements. The possible code for âblack widow spiderâ is âagnos vitri bluninâ.    Â
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Acid rain is caused due to pollution of the atmosphere by:
What is heavy water?
The motion of an object under free fall is an example of which of the following?
Which radioactive element is used in heart pacemakers?
A mixture of carbon monoxide and hydrogen is known as ______
Which of the following alkali metals has the highest specific heat?
What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?
Bases react with acids to form ________.
Which is the lightest and most abundant chemical element, constituting roughly 75 % of the Universeâs elemental mass?
