Explanation Deuterium, (D, or 2H), also called h eavy hydrogen. Deuterium is an isotope of hydrogen. In the simple hydrogen molecule,  there is one proton, one electron, and no neutrons, protons, electrons, and neutrons being the elementary particle s that make up the atom. ). while  Deuterium, on the other hand, is composed of one proton, one electron , and one neutron . ND11-07-2023

Explanation As the person is 7th from the either end, implies, there are 6 persons ahead of him and 6 persons behind him as shown below. Hence, there are 13 persons in the queue.

Explanation The given series is a square of natural number (1)^2 = 1 (2)^2 = 4 (3)^2 =9 (4)^2 = 16 (5)^2 = 25 (6)^2 = 36 (7)^2 = 42 (8)^2 = 64

Explanation b=12, c−a=8 a2+b2=c2 ⇒b2=(c−a)(c+a) ⇒144=8×(c+a) Solving we get, c = 13 cm, a = 5cm Area of triangle =21×12cm×15cm=30cm2

Explanation The difference between consecutive terms of the given series are respectively 5, 7, 9, 11 and 13. Clearly, 34 is a wrong number and must be replaced by (24 + 11) i.e. 35.

Explanation James Watson is an American molecular biologist, geneticist, and zoologist. In 1953, he co-authored with Francis Crick the academic paper proposing the double helix structure of the DNA molecule.  ND13-07-2023

Explanation Statement of witnesses  recorded by police officer is not  signed  Explanation First Information Report (FIR) is a written document prepared by the police  In column 1, the d ate and time of the incident are mentioned. In column 2, the name and address of the complainant Column 3 contains a brief description of the crime Column 4 mentions the place of occurrence and the direction from the police station. If there is any delay in filing the F.I.R., the reason for it is mentioned in column 5. The date and time o f departure from the police station are mentioned in column 6.

Explanation Statement of witnesses  recorded by police officer is not  signed  Explanation First Information Report (FIR) is a written document prepared by the police  In column 1, the d ate and time of the incident are mentioned. In column 2, the name and address of the complainant Column 3 contains a brief description of the crime Column 4 mentions the place of occurrence and the direction from the police station. If there is any delay in filing the F.I.R., the reason for it is mentioned in column 5. The date and time o f departure from the police station are mentioned in column 6.

Explanation Statement of witnesses  recorded by police officer is not  signed  Explanation First Information Report (FIR) is a written document prepared by the police  In column 1, the d ate and time of the incident are mentioned. In column 2, the name and address of the complainant Column 3 contains a brief description of the crime Column 4 mentions the place of occurrence and the direction from the police station. If there is any delay in filing the F.I.R., the reason for it is mentioned in column 5. The date and time o f departure from the police station are mentioned in column 6.

Explanation Statement of witnesses  recorded by police officer is not  signed  Explanation First Information Report (FIR) is a written document prepared by the police  In column 1, the d ate and time of the incident are mentioned. In column 2, the name and address of the complainant Column 3 contains a brief description of the crime Column 4 mentions the place of occurrence and the direction from the police station. If there is any delay in filing the F.I.R., the reason for it is mentioned in column 5. The date and time o f departure from the police station are mentioned in column 6.