Question
What is the present age of Rina? I. Rina’s
present age is `1/10` of her mother’s present age. II. After 5 years, Rina’s age will be `1/5` of her mother’s age at that time. Each of the questions given below has one question and two statements marked I and II. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and choose the appropriate option.Solution
Which of the following is an example of symbiosis?
What is the product of the reaction?
CH₃COOH + CH₃OH → (H⁺, heat)
In a nuclear reactor, one of the following is used as a fuel.
1 mole of carbon atoms = ______ g of carbon atoms
Two capacitors of capacitance 6 µF and 3 µF are connected in series across a battery of constant voltage.
The charges stored on the two capaci...
Group number and valency have no relation in
In Bohr’s model of the hydrogen atom, electrons in “stationary” orbits do not emit radiation continuously because:
The primary reason that smoking cigarettes is bad for our health is that cigarette smoke _______.
Chemical equation is balanced according to the law of
Consider the following statements regarding antibiotics
1. They are used to destroy disease-causing bacteria.
2. They can be applied to th...