Q1: In general, oxides of non metals are ________ in nature?
(a) basic
(b) acidic
(c) neutral
(d) amphoteric
Q2: The percentage of which of the following components of air always varies from one place to the other?
(a) O₂
(b) N₂
(c) Water vapour
(d) CO₂
(2021-22)
Q1: What was Tithe?
(A) Tax to be paid directly to the state.
(B) Currency of France.
(C) A Tax levied by the church.
(D) A type of dress worn by the elite.
Q2: In the Eighteenth Century French society was divided into how many Estates?
(A) One
(B) Two
(C) Three
(D) Four
Q1: Which activity is basic to living beings?
(a) Reproduction
(b) Locomotion
(c) Molecular Movement
(d) Adaptation
Q1: All metals are solids except:
(a) Sodium
(b) Calcium
(c) Mercury
(d) Copper
Q2: Which of the following metal does not react with dilute Hydrochloric acid?
(a) Iron
(b) Sodium
(c) Magnesium
(d) Copper
Q1: A linear equation of two variables x and y can be represented as ax + by = c, where a, b, and c are:
(A) Rational numbers
(B) Irrational numbers
(C) Integers
(D) Real Numbers
Q2: The graph of the equation of the form y = kx is a line which?
(A) May pass through the origin.
(B) Always passes through the origin.
(C) Will not pass through origin
(D) Will be parallel to x-axis
Class 9 Maths - Important Identities
(a+b)² = a² + 2ab+ b²
(a–b)² = a² –2ab + b²
a² – b² = (a+b)(a–b)
Fill in the blanks with suitable words.
1. ____ regulate the exchange of gases and the loss of water vapour from the leaves.
2. Who won the Nobel Prize for his work on photosynthesis?
3. ____are stacks of thylakoid membrane.
4. Photosynthesis occurs in which organelle of the cell?
5. Iodine can be used to test the presence of____.
Salts/Compounds Colour
1. Potassium dichromate, K₂Cr₂O₇ Orange
2. Potassium permanganate, KMnO₄ Violet
3. Ferric tetra-oxide, Fe₃O₄ Black
4. Ferrous sulphate, FeSO₄.7H₂O Green
5. Ferric sulphate, Fe₂(SO₄)₃ Yellow
6. Ferric hydroxide, Fe(OH)₂ Green
Choose the right answer from the four alternatives given below.
Q1: The Tropic of Cancer DOES NOT pass through:
(a) Rajasthan
(b) Chhattisgarh
(c) Odisha
(d) Tripura
Q2: The easternmost longitude of India is:
(a) 97° 25' E
(b) 68° 7' E
(c) 77° 6' E
(d) 82° 32' E
Choose the correct option in each of the following questions:
Q1. Which of the following is a rational number?
(a) 2√3
(b) π
(c) 0
(d) √3 + 1
Q2. Every point on a number line represents
(a) a rational number
(b) a natural number
(c) an irrational number
(d) a real number
(General Science)
2. Which Vitamin is known as the anti-infetive vitamin
3. Which Vitamin is used for ELISA test (AIDS)?
4. Which Vitamin contains Cobalt?
For Class 11/Class 12 Physics - NEET - JEE
Physics deals with the study of the basic laws of nature and their manifestation in different phenomena. The basic laws of physics are universal and are applied in widely different contexts and conditions. Physics is a basic discipline in the category of natural sciences which also includes other disciplines like Chemistry and Biology. The word physics comes from a Greek word meaning nature.
Here is a partial list of Physicists and their contributions in various fields of physics.
Fill in the blanks with suitable words.
1. HCF of any two primes numbers is always __________.
2. LCM of Smallest prime number and the smallest composite number is _______.
3. A _________ is a polynomial of degree 0.
4. We get the original polynomial if we multiply its ________ together.
5. If we draw x = a and y = b graphically then we get lines intersecting at _________.
