Differentiate Between Neurogenic Heart And Myogenicheart
Neurogenic Heart and Myogenicheart – Differences: Neurogenic Heart Myogenic Heart It Is An Open Circulatory System. It Is A Closed... View Article
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The Intrinsic Semiconductor Behaves As Insulator At (A) 0 K. (B) 0° C. (C) 100 K. (D) 100° C.
The correct answer is (A) 0 K. The conductivity of semiconductors increases with an increase in temperature and vice-versa. Therefore,... View Article
What Is Mass Selection?
Mass selection is one of the most important methods used in plant breeding and this is the type of breeding... View Article
2 Moles Of Nitrogen Atoms At Ntp Occupy A Volume Of (A) 5.6 L.(B) 22.4 L.(C) 11.2 L.(D) 44.8 L.
The correct answer is (B) 22.4 L. 2N → N2 2 moles of N atoms form 1-mole N2 molecules We... View Article
If Masses Of All Molecules Of A Gas Are Halved And Their Speed Is Double Then The Ratio Of Initial And Final Pressure Will Be(A) 1:2.(B) 1:4.(C) 2:1.(D) 4:1.
Sol: The correct answer is (A) 1:2. Consider a box of length, l A molecule bounces elastically of the wall... View Article
What Are Four Main Characteristics Of Chordates
The four main characteristics of chordates are: All Chordates are Triploblastic. All Chordates have a notochord. All Chordates have a... View Article
Which Of The Following Metals On Reacting With Sodium Hydroxide Solution Produce Hydrogen Gas? (A) Iron (Fe). (B) Zinc (Zn).(C) Aluminum (Al). (D) Both (B) and (C).
The correct answer is (D) Both (B) and (C). Both Zinc (Zn) and Aluminum (Al) produce hydrogen gas reacting with... View Article
Curdling Of Milk In The Stomach Is Due To The Action Of (A) HCl.(B) Renin. (C) Pepin. (D) Rennin.
The correct answer is (D) Rennin. Curdling of milk in the stomach is due to the action of rennin. Rennin... View Article
The Octane Number Has Zero Value For (A) N-Octane. (B) N-Heptane. (C) Iso-Octane. (D) Tetraethyl Lead.
The correct answer is (B) n-heptane. N-heptane is defined as the zero point of the octane rating scale. The octane... View Article
What Is The Expression For The Determination Of Poissons Ratio For Rubber?
Sol: The volume of rubber, V = AL \(\begin{array}{l}\Rightarrow \frac{dV}{dL} = – L \frac{dA}{dL} + A,\end{array} \) The negative sign... View Article
What Is Average Speed Required To Run A Mile (1.6 Km) In 4 Minutes?
Sol: Given: Time, t = 4 min = 240s Distance, D = 1.6km = 1.6 * 103m The average speed,... View Article
Positive Economic Theory Deals With_____.
The positive economic theory deals with what are or how the economic problems faced by society are solved. Positive economics... View Article
A Rhombus Sheet, Whose Perimeter Is 32 M And Whose One Diagonal Is 10 M Long, Is Painted On Both Sides At The Rate Of ` 5 Per M2. Find The Cost Of Painting.
Sol: Perimeter = 32 m. Therefore, The length of a side = \(\begin{array}{l}\frac{32}{4} \end{array} \)= 8m. Diagonal of a rhombus... View Article
Which Of The Following Nonmetal is Lustrous? (A) Iodine. (B) Oxygen. (C) Sulphur. (D) Nitrogen.
The correct answer is (A) Iodine. Lustre refers to shining metals. Non-metals such as sulphur, oxygen, nitrogen are non-lustrous. Iodine... View Article
Benedict’s Test Is Used To Detect : (A) Fats. (B) Sucrose. (C) Glucose. (D) Vitamins
The correct answer is (C) Glucose. Benedict’s test is a chemical test that is often used to detect the presence... View Article
Is Melting Of Ice A Reversible Change. (True /False)
The given statement is true. The melting of ice is a reversible change as the melted ice cubes may be... View Article
Young’s Experiment Establishes That______. (A) Light Consists Of Waves. (B) Light Consists Of Particles. (C) Light Consists Of Both Particles And Waves. (D) Light Consists Of Neither Particles Nor Waves.
The correct answer is (A) Light Consists Of Waves. Young’s double-slit experiment establishes that light consists of waves. Young’s double-slit... View Article
Which Of The Following Is The Conjugate Acid Of So42−? (A) H+. (B) SO42−. (C) HSO4−.(D) H2SO4.
The correct answer is (C) HSO4−. A conjugate acid, within the Brønsted–Lowry acid-base theory, is a species formed by the... View Article
If, 1/x + 1/y = k and 1/x – 1/y = k, Then The Value Of Y _____.
Given: \(\begin{array}{l}\frac{1}{x} + \frac{1}{y} = k\end{array} \) And \(\begin{array}{l}\frac{1}{x} -\frac{1}{y} = k\end{array} \) Let \(\begin{array}{l}\frac{1}{x} + \frac{1}{y} = k —... View Article
Which Is The Smallest Country In Europe?
Vatican City, or the state of Vatican City, is the smallest country in Europe and as well as in the... View Article
